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Journal articles on the topic 'Volcanism'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Tripathi, C. "Volcanism in Gondwanas." Journal of Palaeosciences 36 (December 31, 1987): 285–89. http://dx.doi.org/10.54991/jop.1987.1587.

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In India the Lower Permian event is marked by a major volcanic episode in the Himalayan belt and rift faulting in the Peninsula which gave rise to various Gondwana basins. The Lower Cretaceous major volcanic episode represented by the Rajmahal Trap represents the termination of Gondwana sedimentation. Lower Permian volcanism is represented by the Panjal Volcanics in Kashmir Basin and its equivalent, the Volcanics in Spiti-Zanskar Basin and Rotung Volcanics (Abor Volcanics) in Arunachal Pradesh. In Karakarom Basin of Ladakh, volcanism is associated with Changtash and Aqtash formations of Permia

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McDOUGALL, IAN. "Age of volcanism and its migration in the Samoa Islands." Geological Magazine 147, no. 5 (2010): 705–17. http://dx.doi.org/10.1017/s0016756810000038.

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AbstractPotassium–argon (K–Ar) ages on whole rock samples have been measured on lavas from the subaerial Samoa Islands, which form a broadly linear volcanic chain that extends from the ESE to the WNW for about 360 km. The Manu'a Islands near the southeast limit of the chain exhibit youthful ages, with most <0.4 Ma, in keeping with the geological observations. Tutuila consists of several volcanoes, and previous work yielded a mean K–Ar age of 1.26 ± 0.15 Ma for the shield-building volcanism. Upolu, to the WNW of Tutuila, gives a mean age of 2.15 ± 0.35 Ma for the shield-building phase, repre

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Smellie, John L. "Chapter 3.2a Bransfield Strait and James Ross Island: volcanology." Geological Society, London, Memoirs 55, no. 1 (2021): 227–84. http://dx.doi.org/10.1144/m55-2018-58.

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AbstractFollowing more than 25 years of exploration and research since the last regional appraisal, the number of known subaerially exposed volcanoes in the northern Antarctic Peninsula region has more than trebled, from less than 15 to more than 50, and that total must be increased at least three-fold if seamounts in Bransfield Strait are included. Several volcanoes remain unvisited and there are relatively few detailed studies. The region includes Deception Island, the most prolific active volcano in Antarctica, and Mount Haddington, the largest volcano in Antarctica. The tectonic environmen

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Smellie, John L. "Chapter 1.2 Antarctic volcanism: volcanology and palaeoenvironmental overview." Geological Society, London, Memoirs 55, no. 1 (2021): 19–42. http://dx.doi.org/10.1144/m55-2020-1.

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AbstractSince Jurassic time (c.200 Ma), Antarctica has had a greater diversity of volcanism than other southern continents. It includes: (1) voluminous mafic and felsic volcanism associated with the break-up of Gondwana; (2) a long-lived continental margin volcanic arc, including back-arc alkaline volcanism linked to slab rollback; (3) small-volume mafic alkaline volcanism associated with slab-window formation; and (4) one of Earth's major continental rift zones, the West Antarctic Rift System (WARS), with its numerous large alkaline central volcanoes. Several of Antarctica's volcanoes are sti

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Ganelin, A. V., E. V. Vatrushkina, and M. V. Luchitskaya. "Geochemistry and geochronology of cretaceous volcanism of Chauna region, Central Chukotka." Геохимия 64, no. 1 (2019): 20–42. http://dx.doi.org/10.31857/s0016-752564120-42.

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New geochronological and geochemical data on the age and composition of Cretaceous volcanism of Palyavaam River basin (Central Chukotka, Chauna region) are presented. First complex is composed of rhyolites, ignimbrites and felsic tuffs of Chauna Group of Okhotsk-Chukotka volcanic belt (OCVB). Second complex is represented by volcanic rocks of latite-shoshonite series of Early Cretaceous age, distinguished as Etchikun’ Formation. Its origin is still debatable. Some researchers refer deposits of Etchikun’ Formation to magmatic stage before OCVB activity. Other authors include in Chauna Group com

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6

SIMKIN, T. "Monitoring Volcanism: Volcanic Hazards." Science 245, no. 4913 (1989): 83–84. http://dx.doi.org/10.1126/science.245.4913.83.

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7

Kitsopoulos, K. "MAGMA GENERATION AND MIXING IN THE EARLIEST VOLCANIC CENTRE OF SANTORINI (AKROTIRI PENINSULA). MINERAL CHEMISTRY EVIDENCE FROM THE AKROTIRI PYROCLASTICS." Bulletin of the Geological Society of Greece 43, no. 5 (2017): 2625. http://dx.doi.org/10.12681/bgsg.11669.

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Santorini is a dominant expression of magma generation and subsequent volcanism in the Meditereanean area, where a calk-alkaline, high-alumina, basalt-andesite-dacite type of volcanism was expressed from eight centres. The volcanics of the Akrotiri peninsula are considered to be the products of the earliest (Pliocene Pleistocene) volcanic centre. The present study has investigated the mineral chemistry of some major pyrogenic phenocrysts, such as plagioclase and Fe-Ti oxides, of the Akrotiri pyroclatics unit, which have undergone a notable zeolitization procedure. The results are compatible wi

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Ludden, John, Claude Hubert, and Clement Gariépy. "The tectonic evolution of the Abitibi greenstone belt of Canada." Geological Magazine 123, no. 2 (1986): 153–66. http://dx.doi.org/10.1017/s0016756800029800.

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AbstractBased on structural, geochemical, sedimentological and geochronological studies, we have formulated a model for the evolution of the late Archaean Abitibi greenstone belt of the Superior Province of Canada. The southern volcanic zone (SVZ) of the belt is dominated by komatiitic to tholeiitic volcanic plateaux and large, bimodal, mafic-felsic volcanic centres. These volcanic rocks were erupted between approximately 2710 Ma and 2700 Ma in a series of rift basins formed as a result of wrench-fault tectonics.The SVZ superimposes an older volcanic terrane which is characterized in the north

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9

CITRONI, SERGIO B., MIGUEL A. S. BASEI, OSWALDO SIGA JR., and JOSÉ M. DOS REIS NETO. "Volcanism and stratigraphy of the Neoproterozoic Campo Alegre Basin, SC, Brazil." Anais da Academia Brasileira de Ciências 73, no. 4 (2001): 581–97. http://dx.doi.org/10.1590/s0001-37652001000400012.

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The depositional succession of the Campo Alegre Basin (Santa Catarina - southern Brazil) was investigated having the evolution of the volcanic activity as background. The different stratigraphic units are interpreted as belonging to different volcanic stages: Bateias Formation, conglomerates and sandstones, related with a pre-volcanic stage; Campo Alegre Group, at the main volcanic stage, with each different formation corresponding to different episodes of volcanism - Rio Negrinho Formation, corresponding to the basic volcanism, Avenca Grande Formation to ignimbritic event, Serra de São Miguel

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10

Griffiths, Chris J., and Richard D. J. Oglethorpe. "The stratigraphy and geochronology of Adelaide Island." Antarctic Science 10, no. 4 (1998): 462–75. http://dx.doi.org/10.1017/s095410209800056x.

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The Mesozoic-Cenozoic volcanic arc of the Antarctic Peninsula is represented on Adelaide Island by a sedimentary and volcanic succession intruded by plutons. 40Ar-39 Ar step-heating age spectra have been obtained from volcanic rocks and hornblende separates from sedimentary clasts of plutonic origin. These spectra show evidence for some argon loss, but, in general, have plateau ages which are consistent with the mapped stratigraphy and with other geochronological controls, suggesting that they approximate to original ages. As a result the following events in the evolution of Adelaide Island ca

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11

Li, Xiaoyi, Wenliang Du, Hanwen Cui, and Xiaolin Tian. "The crater with gravity anomaly in the center may be the ancient volcanic crater and geothermal under it." Thermal Science 23, no. 5 Part A (2019): 2765–74. http://dx.doi.org/10.2298/tsci181210190l.

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Lunar volcanism play an important role on studying the thermal and compositional evolution of the Moon. However, the studies on the relationships among composition, location and age of Lunar volcanos are still limit. The high-quality and multi-source remote sensing data offer the opportunity to obtain significant features of the Lunar volcanism and the evolution of the Moon. Specifically, the high-quality gravitational features of volcanic landforms of the Moon are observed by the Gravity Recovery and Interior Laboratory. Besides, the lunar reconnaissance orbiter camera provides detail morphol

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Fadda, S., M. Fiori, S. Pretti, and P. Valera. "MANGANESE MINERALISATIONS AT THE BASE OF MIOCENE SEDIMENTS IN NORTHERN SARDINIA (ITALY)." Bulletin of the Geological Society of Greece 43, no. 5 (2017): 2588. http://dx.doi.org/10.12681/bgsg.11666.

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During the eastward drift of the Palaeozoic-Mesozoic block formed by Sardinia and Corsica in the Oligocene-Miocene, calc-alkaline volcanism developed mostly in the western part of the island. Most Tertiary metallogenic phoenomena are related to hydrothermal activity associated with this volcanism. Following volcanic and related hydrothermal activity, sediments were deposited during the Oligocene-Miocene as a consequence of a marine transgression. The basal part of this series is clastic and includes elements derived from erosion of unaltered volcanics as well as hydrothermally altered rocks an

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Megerle, Heidi Elisabeth. "Geoheritage and Geotourism in Regions with Extinct Volcanism in Germany; Case Study Southwest Germany with UNESCO Global Geopark Swabian Alb." Geosciences 10, no. 11 (2020): 445. http://dx.doi.org/10.3390/geosciences10110445.

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Geotourism has become more popular in recent decades. Volcanism is an essential part of geoheritage and attracts a high number of visitors. In contrast to active volcanism, Tertiary volcanism is often not identified as such by a lay audience and is understandably perceived as less spectacular. The challenge is therefore to protect the volcanic heritage, to communicate its values, and to enhance it with the help of adequate geotourism offers. Germany does not have active volcanism, but a very high quality volcanic geological heritage, especially from the Tertiary period. Fortunately, this herit

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Truong, N., and J. I. Lunine. "Volcanically extruded phosphides as an abiotic source of Venusian phosphine." Proceedings of the National Academy of Sciences 118, no. 29 (2021): e2021689118. http://dx.doi.org/10.1073/pnas.2021689118.

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We hypothesize that trace amounts of phosphides formed in the mantle are a plausible abiotic source of the Venusian phosphine observed by Greaves et al. [Nat. Astron., https://doi.org/10.1038/s41550-020-1174-4 (2020)]. In this hypothesis, small amounts of phosphides (P3− bound in metals such as iron), sourced from a deep mantle, are brought to the surface by volcanism. They are then ejected into the atmosphere in the form of volcanic dust by explosive volcanic eruptions, which were invoked by others to explain the episodic changes of sulfur dioxide seen in the atmosphere [Esposito, Science 223

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15

Barberi, F., M. Coltelli, G. Ferrara, F. Innocenti, J. M. Navarro, and R. Santacroce. "Plio-Quaternary volcanism in Ecuador." Geological Magazine 125, no. 1 (1988): 1–14. http://dx.doi.org/10.1017/s0016756800009328.

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AbstractExtensive sampling, major element chemistry on over 300 samples and K-Ar radiometric dating have been carried out on the Ecuadorian Upper Tertiary–Quaternary volcanoes. The results show important space–time variations of the volcanic activity, between Late Miocene time and the present. In Late Miocene time a continuous volcanic belt, located approximately along the present volcanic front (VF), affected the whole country from the Cuenca basin to the south, up to Colombia to the north. Major changes occurred at about 5 Ma: volcanic activity stopped south of the Guayaquil fault belt and n

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KEPPIE, J. D., J. DOSTAL, J. B. MURPHY, and B. L. COUSENS. "Palaeozoic within-plate volcanic rocks in Nova Scotia (Canada) reinterpreted: isotopic constraints on magmatic source and palaeocontinental reconstructions." Geological Magazine 134, no. 4 (1997): 425–47. http://dx.doi.org/10.1017/s001675689700719x.

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Palaeozoic volcanism in the Avalon Terrane of northern Nova Scotia occurred during three time intervals: Cambrian–early Ordovician, late Ordovician–early Silurian and middle–late Devonian. In the Meguma Terrane of southern Nova Scotia, Palaeozoic volcanism is limited to the middle Ordovician. Geochemical data show that most of these volcanic rocks are bimodal, within-plate suites. Initial εNd signatures range from +5.4 to −1.9 in the rhyolites and +6.8 to +2.7 in the basalts, a difference attributable to the absence or presence, respectively, of a significant crustal component. The data and re

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17

Helgason, Jóhann, and Robert A. Duncan. "Stratigraphy, 40Ar–39Ar dating and erosional history of Svínafell, SE-Iceland." Jökull 63, no. 1 (2013): 33–54. http://dx.doi.org/10.33799/jokull2013.63.033.

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The interplay of volcanism and erosion in the Svínafell massif, on the western slope of the Öræfajökull volcanic center, SE-Iceland, is traced with geological mapping, magnetostratigraphy and $^{40}$Ar–$^{39}$Ar age determinations. The volcanic strata are mainly of Quaternary age, i.e., geomagnetic chrons of lower Matuyama to upper Brunhes. The 1832 m thick sequence in Svínafell is composed of 37 discrete lithologic formations, assigned to seven volcano-stratigraphic groups beginning with the onset of volcanism in the Öræfajökull stratovolcano during lower Brunhes magnetic chron (C1n < 781

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18

Sánchez, John J., and William A. Posada. "Old and modern volcanic depictions as evidence of communities-volcanoes mutualism in Colombia." Andean Geology 51, no. 1 (2024): 86. http://dx.doi.org/10.5027/andgeov51n1-3667.

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Studying the different ways in which the concept of volcanism is represented is crucial in the understanding of communities’ perception of the volcanic phenomena. In this contribution, 129 modern (2021-2023) depictions of volcanoes in Colombia between latitudes 0.82 and 5.96° N are described and classified into different contexts of use. Prehispanic depictions of volcanism are investigated in rock art sites (3 pictographs and 33 petroglyphs), and 15 distinct mythical narratives compiled and confirmed through interviews in the State of Nariño. We suggest that many of the rock art sites contain

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19

Tripathi, S. C., and M. N. Mishra. "Cyclic Volcanism and Sedimentation in the Mahakoshal Greenstone Belt, District Sidhi, Madhya Pradesh." Journal Geological Society of India 44, no. 2 (1994): 167–73. http://dx.doi.org/10.17491/jgsi/1994/440206.

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Abstract Several ordered cycles of volcanism and sedimentation have been recorded from the Mahakoshal greenstone belt in the eastern part of the Sidhi district, Madhya Pradesh. Each cycle is characterised by pillow lava-pahoehoe toes, bomb agglomerate. volcanic breccia and tuff, culminating with the deposition of massive chert under quiescent conditions. The volcanics and the sediments exhibit linear distribution and were deposited as a result of eruptions along ENE-WSW trending fissures, parallel to the margins of the belt. The deposition of volcanics and sediments took place over thin Archae

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AWDANKIEWICZ, MAREK, RYSZARD KRYZA, and NORBERT SZCZEPARA. "Timing of post-collisional volcanism in the eastern part of the Variscan Belt: constraints from SHRIMP zircon dating of Permian rhyolites in the North-Sudetic Basin (SW Poland)." Geological Magazine 151, no. 4 (2013): 611–28. http://dx.doi.org/10.1017/s0016756813000678.

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AbstractThe final stages of the Variscan orogeny in Central Europe were associated with voluminous granitic plutonism and widespread volcanism. Four samples representative of the main rhyolitic volcanic units from the Stephanian–Permian continental succession of the North-Sudetic Basin, in the eastern part of the Variscan Belt, were dated using the SIMS (SHRIMP) zircon method. Three samples show overlapping206Pb–238U mean ages of 294 ± 3, 293 ± 2 and 292 ± 2 Ma, and constrain the age of the rhyolitic volcanism in the North-Sudetic Basin at 294–292 Ma. This age corresponds to the Early Permian

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Zakharikhina, L. V., and Yu S. Litvinenko. "Volcanism and geochemistry of soil and vegetation cover of Kamchatka. Communication 2. Specificity of forming the elemental composition of volcanic soil in cold and humid conditions." Вулканология и сейсмология, no. 3 (May 14, 2019): 25–33. http://dx.doi.org/10.31857/s0203-03062019325-33.

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Volcanic soils of Kamchatka have the low contents of most the chemical elements in relation to their overall prevalence in the soils of continents and volcanic soils of Europe. Relatively increased gross contents of elements typical for volcanic rocks of medium and basic composition: Na, Ca, Mg, Cd, Mn, Co, Cu, and steadily low contents of elements characteristic of acid volcanics: La, Ce, Pr, Nd, Nb, Hf, Tl, Rb and Th, is most characteristic of the soils of different areas of the peninsula. The existing in the past and currently observed different conditions of volcanism in the previously all

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Zakharikhina, L. V., and Yu S. Litvinenko. "Volcanism and geochemistry of soil and vegetation cover of Kamchatka. Communication 2. Specificity of forming the elemental composition of volcanic soil in cold and humid conditions." Вулканология и сейсмология, no. 3 (May 14, 2019): 25–33. http://dx.doi.org/10.31857/s0205-96142019325-33.

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Volcanic soils of Kamchatka have the low contents of most the chemical elements in relation to their overall prevalence in the soils of continents and volcanic soils of Europe. Relatively increased gross contents of elements typical for volcanic rocks of medium and basic composition: Na, Ca, Mg, Cd, Mn, Co, Cu, and steadily low contents of elements characteristic of acid volcanics: La, Ce, Pr, Nd, Nb, Hf, Tl, Rb and Th, is most characteristic of the soils of different areas of the peninsula. The existing in the past and currently observed different conditions of volcanism in the previously all

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Mulyaningsih, Sri, Rahel Putong, Anka Prima, Radhtya Adzan Hidayah, and Desi Kiswiranti. "Volcanic Evolution of the Southern Mountain Neogene Magmatic Belt in Baturagung Range Central Java, Indonesia." Journal of Geoscience, Engineering, Environment, and Technology 9, no. 04 (2024): 400–419. https://doi.org/10.25299/jgeet.2024.9.04.18461.

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Various Neogene volcanic rocks associated with calcareous sediments compose the Southern Mountain located from Imogiri at Yogyakarta to Wonogiri at Central Java, Indonesia. The volcanic rocks are concentrated along the north side of the Mountains which was recognized as the Neogene magmatic arc of Java; Baturagung is part of them. The discussion focuses on the relationship between the volcanic features and its basin evolution. The methods were geological fieldwork including measuring sections and collecting samples, thin sections, XRF, AAS, and micropaleontology. More than 13 circular hogbacks

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Geyer, A. "Chapter 1.4 Antarctic volcanism: active volcanism overview." Geological Society, London, Memoirs 55, no. 1 (2021): 55–72. http://dx.doi.org/10.1144/m55-2020-12.

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AbstractIn the last two centuries, demographic expansion and extensive urbanization of volcanic areas have increased the exposure of our society to volcanic hazards. Antarctica is no exception. During the last decades, the permanent settlement and seasonal presence of scientists, technicians, tourists and logistical personnel close to active volcanoes in the south polar region have increased notably. This has led to an escalation in the number of people and the amount of infrastructure exposed to potential eruptions. This requires advancement of our knowledge of the volcanic and magmatic histo

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Stelten, Mark E., Drew T. Downs, Duane E. Champion, et al. "The timing and compositional evolution of volcanism within northern Harrat Rahat, Kingdom of Saudi Arabia." GSA Bulletin 132, no. 7-8 (2019): 1381–403. http://dx.doi.org/10.1130/b35337.1.

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Abstract Harrat Rahat, one of several large, basalt-dominated volcanic fields in western Saudi Arabia, is a prime example of continental, intraplate volcanism. Excellent exposure makes this an outstanding site to investigate changing volcanic flux and composition through time. We present 93 40Ar/39Ar ages and six 36Cl surface-exposure ages for volcanic deposits throughout northern Harrat Rahat that, when integrated with a new geologic map, define 12 eruptive stages. Exposed volcanic deposits in the study area erupted &lt;1.2 Ma, and 214 of 234 eruptions occurred &lt;570 ka. Two eruptio

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Šimon, Ladislav, Viera Kollárová, and Monika Kováčiková. "Neogene volcanics of the Burda mountain range nearby Štúrovo, Slovakia." Mineralia Slovaca 55, no. 2 (2023): 117–32. http://dx.doi.org/10.56623/ms.2023.55.2.2.

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The Neogene volcanic products of the Burda mountain range nearby Štúrovo belong to Burda Formation. At the base of the Burda Formation a succession of epiclastic volcanic rocks and pyroclastic rocks of andesites has developed. In the central part of the formation, the volcanic products associated with the activity of submarine volcanism of the Badenian age developed. Submarine extrusive volcanic domes of andesites are typical. In the upper part of the Burda Formation, pyroclastic and epiclastic facies of andesites were formed. Deposits of pyroclastic flows and redeposited pyroclastics are char

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Smellie, John L., and Adam P. Martin. "Chapter 5.2a Erebus Volcanic Province: volcanology." Geological Society, London, Memoirs 55, no. 1 (2021): 415–46. http://dx.doi.org/10.1144/m55-2018-62.

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AbstractThe Erebus Volcanic Province is the largest Neogene volcanic province in Antarctica, extendingc.450 km north–south and 170 km wide east–west. It is dominated by large central volcanoes, principally Mount Erebus, Mount Bird, Mount Terror, Mount Discovery and Mount Morning, which have sunk more than 2 km into underlying sedimentary strata. Small submarine volcanoes are also common, as islands and seamounts in the Ross Sea (Terror Rift), and there are many mafic scoria cones (Southern Local Suite) in the Royal Society Range foothills and Dry Valleys. The age of the volcanism ranges betwee

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Wang, Bi-Wen, Qian W. L. Zhang, Yi Chen, et al. "Returned samples indicate volcanism on the Moon 120 million years ago." Science 385, no. 6713 (2024): 1077–80. http://dx.doi.org/10.1126/science.adk6635.

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There is extensive geologic evidence of ancient volcanic activity on the Moon, but it is unclear how long that volcanism persisted. Magma fountains produce volcanic glasses, which have previously been found in samples of the Moon’s surface. We investigated ~3000 glass beads in lunar soil samples collected by the Chang’e-5 mission and identified three as having a volcanic origin on the basis of their textures, chemical compositions, and sulfur isotopes. Uranium-lead dating of the three volcanic glass beads shows that they formed 123 ± 15 million years ago. We measured high abundances of rare ea

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TAKASHIMA, REISHI, HIROSHI NISHI, and TAKEYOSHI YOSHIDA. "Late Jurassic–Early Cretaceous intra-arc sedimentation and volcanism linked to plate motion change in northern Japan." Geological Magazine 143, no. 6 (2006): 753–70. http://dx.doi.org/10.1017/s001675680600255x.

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The Sorachi Group, composed of Upper Jurassic ophiolite and Lower Cretaceous island-arc volcano-sedimentary cover, provides a record of Late Jurassic–Early Cretaceous sedimentation and volcanism in an island-arc setting off the eastern margin of the Asian continent. Stratigraphic changes in the nature and volume of the Sorachi Group volcanic and volcaniclastic rocks reveal four tectonic stages. These stages resulted from changes in the subduction direction of the Pacific oceanic plate. Stage I in the Late Jurassic was characterized by extensive submarine eruptions of tholeiitic basalt from the

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Dawson, J. B. "Neogene–Recent rifting and volcanism in northern Tanzania: relevance for comparisons between the Gardar province and the East African Rift valley." Mineralogical Magazine 61, no. 407 (1997): 543–48. http://dx.doi.org/10.1180/minmag.1997.061.407.06.

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AbstractThe tectonic position of the intraplate, alkaline volcanic province of N. Tanzania in a broad rift-controlled area astride the boundary between the Tanzania Craton and the circum-cratonic Mozambique Fold Belt, strongly resembles that of the Gardar province of S. Greenland. Earlier-identified petrological analogies between Gardar magmatism and that in the Kenya sector of the East African Rift Valley can be extended to volcanism in N. Tanzania, and analogies specifically with the Gardar agpaitic suite are strengthened by the occurrence of eudialyte and aenigmatite in some Tanzanian peral

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KAYIN, Sercan, and Turgay İŞSEVEN. "PALEOMAGNETISM OF QUATERNARY VOLCANISM OF THE MOUNT NEMRUT." Euroasia Journal of Mathematics, Engineering, Natural & Medical Sciences 9, no. 20 (2022): 92–101. http://dx.doi.org/10.38065/euroasiaorg.935.

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As a result of the convergence between the Arabian plate and the Anatolian block, a continentcontinent collision occurred in the region along the Bitlis Zargos sutur zone. Following the collision, volcanic activity began in the Late Miocene and produced volcanic material throughout the region and reach to the Caucasus. Collision-related volcanism in eastern Anatolia covered almost two-thirds of the area and formed volcanic products up to 1 km thick. In order to determine the tectonic evolution of Mount Nemrut and its around, paleomagnetic core samples were collected from a total of 11 sites fr

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Smellie, John L., Kurt S. Panter, and Jenna Reindel. "Chapter 5.3a Mount Early and Sheridan Bluff: volcanology." Geological Society, London, Memoirs 55, no. 1 (2021): 491–98. http://dx.doi.org/10.1144/m55-2018-61.

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AbstractTwo small monogenetic volcanoes are exposed at Mount Early and Sheridan Bluff, in the upper reaches of Scott Glacier. In addition, the presence of abundant fresh volcanic detritus in moraines at two other localities suggests further associated volcanism, now obscured by the modern Antarctic ice sheet. One of those occurrences has been attributed to a small subglacial volcano onlyc.200 km from South Pole, making it the southernmost volcano in the world. All of the volcanic outcrops in the Scott Glacier region are grouped in a newly defined Upper Scott Glacier Volcanic Field, which is pa

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Penatas, Dianti Lintang, Heather L. Moll, and Brigita Ajeng Andya Hariyana. "The Effect of Augmented Reality (AR) Based Multimedia ATLAS: Volcanic Series Volcanism Material on Learning Outcomes of Students of SMAN 2 Blitar." Future Space: Studies in Geo-Education 1, no. 3 (2024): 325–35. http://dx.doi.org/10.69877/fssge.v1i3.32.

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The presence of Augmented Reality (AR) technology in education supports multimedia advances in learning, one of which is ATLAS: Volcanic Series. The use of multimedia in learning can facilitate the understanding of the material by students, so that good learning outcomes are achieved. The purpose of this research is to know the effect of Augmented Reality (AR) based multimedia ATLAS: Volcanic Series volcanism material on student learning outcomes of SMAN 2 Blitar. Quasi experimental is the type of this research and post-test only group design. As the method, the subjects in this study were stu

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Quartini, Enrica, Donald D. Blankenship, and Duncan A. Young. "Chapter 7.5 Active subglacial volcanism in West Antarctica." Geological Society, London, Memoirs 55, no. 1 (2021): 785–803. http://dx.doi.org/10.1144/m55-2019-3.

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AbstractA combination of aerogeophysics, seismic observations and direct observation from ice cores, and subglacial sampling, has revealed at least 21 sites under the West Antarctic Ice Sheet consistent with active volcanism (where active is defined as volcanism that has interacted with the current manifestation of the West Antarctic Ice Sheet). Coverage of these datasets is heterogeneous, potentially biasing the apparent distribution of these features. Also, the products of volcanic activity under thinner ice characterized by relatively fast flow are more prone to erosion and removal by the i

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Rosa, D. R. N., A. A. Finch, T. Andersen, and C. M. C. Inverno. "U-Pb geochronology of felsic volcanic rocks hosted in the Gafo Formation, South Portuguese Zone: the relationship with Iberian Pyrite Belt magmatism." Mineralogical Magazine 72, no. 5 (2008): 1103–18. http://dx.doi.org/10.1180/minmag.2008.072.5.1103.

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AbstractFelsic volcanic rocks exposed in the Frasnian Gafo Formation, in the Azinhalinho area of Portugal, display very similar geochemical signatures to volcanic rocks from the Iberian Pyrite Belt (IPB). located immediately to the south. The similarities include anomalously low high field-strength elements (HFSE) concentrations, possibly caused by low-temperature crustal melting, which translate into classification problems.A geochronological study, using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) analyses of zircon grains from these rocks, has provided concordia

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Kosarev, Alexandr Michailovich, Vladimir Vasilyevich Kholodnov, Evgeny Sergeevich Shagalov, Karina Raisovna Minibaeva, and Gulnara Turdibaevna Shafigullina. "Elements of cyclicity of volcanism and volcanic hosted massive sulphide formation in the Sakmarskaya and Magnitogorskaya megazones of the Southern Urals in the Early and Middle paleozoic and geodynamic reconstructions." Geologicheskii vestnik, no. 1 (March 3, 2025): 54–83. https://doi.org/10.31084/2619-0087/2025-1-4.

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The paper provides a brief description of the series of volcanogenic formations of the Sakmara and Magnitogorsk megazones in the Early and Middle Paleozoic, and considers the geochemical and metallogenic direction of the evolution of volcanism. From the standpoint of plate tectonics, the problems of the relationship of volcanism with the processes of rifting, subduction, plume magmatism and volcanic hosted massive sulphide formation are discussed.

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McDOUGALL, IAN, and FRANCIS H. BROWN. "Timing of volcanism and evolution of the northern Kenya Rift." Geological Magazine 146, no. 1 (2008): 34–47. http://dx.doi.org/10.1017/s0016756808005347.

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AbstractThe northern Kenya Rift is bounded on the west by uplands of Turkana which comprise horst-like blocks that include metamorphic basement rocks, locally overlain unconformably by the Cretaceous Lubur Sandstone, in turn overlain by predominantly volcanic sequences in which relatively thin sedimentary packages occur. Amphibolite facies crystalline rocks of the basement yield Early Palaeozoic K–Ar cooling ages reflecting the Pan-African Orogeny. Volcanism in Turkana was initiated through voluminous eruptions of transitional tholeiitic basalts commencing about 36 Ma ago in the Late Eocene, w

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Reuber, Kyle R., Jim Pindell, and Brian W. Horn. "Demerara Rise, offshore Suriname: Magma-rich segment of the Central Atlantic Ocean, and conjugate to the Bahamas hot spot." Interpretation 4, no. 2 (2016): T141—T155. http://dx.doi.org/10.1190/int-2014-0246.1.

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The Demerara Rise is a prominent bathymetric feature that has been considered as a broad expression of shallow continental basement and used in conjunction with the Guinea Plateau as a pinning point for circum-Atlantic plate reconstructions. Previously, shallow-penetration, poorly imaged seismic data over the Demerara Rise were modeled with the lower sequences interpreted as continental crust at relatively shallow depths. However, new long-offset, deeply penetrating seismic data provide evidence that basement nearly or entirely comprises excessively thick volcanic strata (approximately 21 km).

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ŞEN, PINAR ALICI, ABİDİN TEMEL, and ALAIN GOURGAUD. "Petrogenetic modelling of Quaternary post-collisional volcanism: a case study of central and eastern Anatolia." Geological Magazine 141, no. 1 (2004): 81–98. http://dx.doi.org/10.1017/s0016756803008550.

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Extensive continental collision-related volcanism occurred in Turkey during Neogene–Quaternary times. In central Anatolia, calc-alkaline to alkaline volcanism began in the Middle–Late Miocene. Here we report trace elemental and isotopic data from Quaternary age samples from central and eastern Anatolia. Most mafic lavas from central Anatolia are basalt and basaltic andesite, with lesser amounts of basaltic trachyandesite and andesite. All magma types exhibit enrichment in LILE (Sr, Rb, Ba and Pb) relative to HFSE (Nb, Ta). Trace element patterns are characteristic of continental margin volcani

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Vougioukalakis, Georges E., Christopher G. Satow, and Timothy H. Druitt. "Volcanism of the South Aegean Volcanic Arc." Elements 15, no. 3 (2019): 159–64. http://dx.doi.org/10.2138/gselements.15.3.159.

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Volcanism along the South Aegean volcanic arc began about 4.7 Ma and has lasted until the present day, with eruptions at Methana, Milos, Santorini, Kolumbo and Nisyros volcanoes in historical times. These volcanoes can be grouped into five volcanic fields: three western fields of small, mostly monogenetic edifices, and two central/eastern fields with composite cones and calderas that have produced large explosive eruptions. Crustal tectonics exerts a strong control over the locations of edifices and vents at all five volcanic fields. Tephra and cryptotephra layers in deep-marine sediments pres

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Mahoney, J. Brian, Richard M. Friedman, and Sean D. McKinley. "Evolution of a Middle Jurassic volcanic arc: stratigraphic, isotopic, and geochemical characteristics of the Harrison Lake Formation, southwestern British Columbia." Canadian Journal of Earth Sciences 32, no. 10 (1995): 1759–76. http://dx.doi.org/10.1139/e95-137.

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The Harrison Lake Formation is an Early to Middle Jurassic volcanic-arc assemblage unconformably overlying Triassic oceanic basement in the eastern Coast Belt of southwestern British Columbia. The formation is subdivided into four members including, in ascending order, the Celia Cove Member (conglomerate), the Francis Lake Member (fine-grained strata), the Weaver Lake Member (flows and breccias), and the Echo Island Member (pyroclastic and epiclastic strata). New biostratigraphic constraints pinpoint the initiation of volcanism to late early Toarcian. U–Pb geochronology demonstrates the arc wa

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Aadhiseshan, K. R., and M. Jayananda. "Archean crustal evolution and building of habitable continents: Insights from the Western Dharwar Craton." Habitable Planet 1, no. 1&2 (2025): 197–220. https://doi.org/10.63335/j.hp.2025.0016.

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This contribution presents a comprehensive review synthesis addressing the time frame and processes involved in formation of Archean continental crust, surface environments, oxygenation and microbial activity leading to building the habitable continent in the western Dharwar craton (WDC). The WDC preserve ca. 3600-2600 Ma crustal record comprising TTGs, volcanic-sedimentary greenstones and potassic granites. U-Pb zircon ages and Sm-Nd whole rock isochrons suggest successive stages TTG accretion and greenstone volcanism contribute to episodic continental growth during ca. 3450-3350 Ma, 3300-320

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Dürig, Tobias, Ingo Sonder, Bernd Zimanowski, Hermann Beyrichen, and Ralf Büttner. "Generation of volcanic ash by basaltic volcanism." Journal of Geophysical Research: Solid Earth 117, B1 (2012): n/a. http://dx.doi.org/10.1029/2011jb008628.

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Vatrushkina, E. V., M. I. Tuchkova, and S. D. Sokolov. "Suprasubduction volcanism of Chukotka terrane in the late jurassic– early cretaceous (Arctic region, Russia)." Геотектоника, no. 6 (November 17, 2019): 78–91. http://dx.doi.org/10.31857/s0016-853x2019678-91.

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Abstract The age and geodynamic position of the volcanic source of the Upper JurassicLower Cretaceous deposits of Western Chukotka were determined. Products of synchronous volcanism were revealed by detailed lithological studies. Following sedimentological analysis results we established an admixture of pyroclastic material in the Oxford-Kimmeridgian deposits of the Chukotka microcontinent, indicating the effect of synchronous volcanism on sedimentation. It was shown that the source of pyroclastic material was the intraoceanic Kulpolney island arc, which existed in the northern part of the Pro

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Calleja, Hannah, and Tom Pering. "Crystals and inclined conduits: analogue experiments for slug-driven volcanism." Volcanica 6, no. 1 (2023): 147–60. http://dx.doi.org/10.30909/vol.06.01.147160.

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Basaltic volcanism is the dominant mode of volcanism on Earth and exhibits a range of activity, from passive degassing to the most common explosive style: strombolian volcanism. Strombolian volcanism is driven by gas slugs, making it vital to consider the effects of variable magmatic rheology and internal vent geometry on slug flow dynamics. Emerging experimental technologies play a major role in developing our understanding of the natural complexity of such basaltic systems. This study examines slug ascent within particle-free and particle-containing media experimentally across a range of inc

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Sommer, Carlos Augusto, Felipe Padilha Leitzke, Evandro Fernandes de Lima, et al. "Zircon U-Pb geochronology, Sm-Nd and Pb-Pb isotope systematics of Ediacaran post-collisional high-silica Acampamento Velho volcanism at the Tupanci area, NW of the Sul-Rio-Grandense Shield, Brazil." Brazilian Journal of Geology 47, no. 4 (2017): 545–60. http://dx.doi.org/10.1590/2317-4889201720170064.

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ABSTRACT: We present new U-Pb zircon ages and Sm-Nd-Pb isotopic data for volcanic and hypabyssal acid rocks from the northernmost exposure of the Acampamento Velho Formation in the NW portion of the Sul-Rio-Grandense Shield, Brazil. The first volcanic episode, grouped in the high-Ti rhyolites from the Tupanci hill, shows age of 579 ± 5.6 Ma, which is in agreement with the post-collisional Acampamento Velho Formation volcanism in the Bom Jardim Group of the Camaquã Basin. A poorly constrained age of 558 +/- 39 Ma was obtained for rhyolites from the low-Ti group at the Picados Hill, which may in

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Oppenheimer, Clive. "Volcanism." Geography 81, no. 1 (1996): 65–81. http://dx.doi.org/10.1080/20436564.1996.12452532.

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Bergal-Kuvikas, O. V., E. I. Gordeev, and I. Yu Koulakov. "The role of the back-arc basin in forming slab heterogeneity and generating volcanism in the Kuril-Kamchata Island arc." Doklady Rossijskoj akademii nauk. Nauki o Zemle 516, no. 2 (2024): 600–605. https://doi.org/10.31857/s2686739724060126.

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Origin of volcanism along the Kuril-Kamchatka island arc (KKIA) was analyzed. Geophysical observations show variations in slabʼs properties. Different widths of the volcanic belt in the north and south of the KKIA are caused by changes in the slab's angle. The Bussol Strait rift system may be generated by significant changes in the slab's velocity. We proposed that the back-arc basin plays a dominant role in formation various slabʼs parameters and volcanism manifestations along the KKIA.

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Bordet, Esther, Mitchell G. Mihalynuk, Craig J. R. Hart, Jim K. Mortensen, Richard M. Friedman, and Janet Gabites. "Chronostratigraphy of Eocene volcanism, central British Columbia." Canadian Journal of Earth Sciences 51, no. 1 (2014): 56–103. http://dx.doi.org/10.1139/cjes-2013-0073.

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Onset and termination of Eocene felsic volcanism in the Chilcotin Plateau of central British Columbia is constrained between 54.6 and 46.6 Ma by 33 new U–Pb and 40Ar/39Ar isotopic age determinations. Dates were obtained from representative felsic coherent and fragmental volcanic rocks that comprise the Ootsa Lake Group. The resulting chronostratigraphy shows that magma compositions evolved from felsic to intermediate, with no spatial migration of the volcanic activity. Rhyolitic compositions are oldest; and are overlain by dacitic rocks with varied phenocrysts assemblages. In many parts of the

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Zielinski, Gregory A., Paul A. Mayewski, L. David Meeker, S. Whitlow, and Mark S. Twickler. "A 110,000-Yr Record of Explosive Volcanism from the GISP2 (Greenland) Ice Core." Quaternary Research 45, no. 2 (1996): 109–18. http://dx.doi.org/10.1006/qres.1996.0013.

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AbstractThe time series of volcanically produced sulfate from the GISP2 ice core is used to develop a continuous record of explosive volcanism over the past 110,000 yr. We identified ∼850 volcanic signals (700 of these from 110,000 to 9000 yr ago) with sulfate concentrations greater than that associated with historical eruptions from either equatorial or mid-latitude regions that are known to have perturbed global or Northern Hemisphere climate, respectively. This number is a minimum because decreasing sampling resolution with depth, source volcano location, variable circulation patterns at th

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