Relevant bibliographies by topics / Stratovolcan / Journal articles
To see the other types of publications on this topic, follow the link: Stratovolcan.

Journal articles on the topic 'Stratovolcan'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Stratovolcan.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Nehlig, Pierre, Herve Leyrit, Arnaud Dardon, Gwenael Freour, Alain de Goer de Herve, David Huguet, and Denis Thieblemont. "Constructions et destructions du stratovolcan du Cantal." Bulletin de la Société Géologique de France 172, no. 3 (May 1, 2001): 295–308. http://dx.doi.org/10.2113/172.3.295.

Full text
Abstract:
Abstract The Cantal (France) stratovolcano, which is 70 km in diameter and extends 2500 km 2 , is the largest perialpine stratovolcano. Due to its size and the abundance of breccia, it has never before been the subject of a comprehensive synthesis, despite being considered in more than 30 doctoral theses and over 200 scientific papers, memoirs and reports. An intensive research project, which integrates a synthesis of existing published and unpublished data and new geological, geochemical, geophysical and geochronological data, along with 1:25,000-scale mapping of the central part of the stratovolcano, has led to the production of the first 1:50,000-scale map of the central part of the volcano and a 1:100,000-scale map of the entire volcano. The present mapping and analytical work has led to an entirely new conceptual view of the geological history of the stratovolcano and to a reinterpretation of the previously defined stratigraphic units and their volcanological significance. This paper presents a brief geological history, focussing on the abundant primary and secondary breccia (lahar and debris-avalanche deposits) that make up most of the volcano, and reviews a number of dogmas and uncertainties concerning the volcano and its evolution. The stratovolcano was emplaced between 13 and 2 Ma on an uplifted Hercynian basement associated with Oligocene sedimentary basins. The overall geometry of the Cantal stratovolcano is rather simple, composed of a central trachyandesitic volcano surrounded by debris-avalanche and debris-flow deposits sandwiched between two basaltic lava flows. Basaltic lava erupted first, between 13 and 7 Ma, with a peak activity around 9 Ma. Trachyandesitic lava with minor trachyte and rhyolite was erupted towards the end of the basaltic activity, between 10 and 6.5 Ma, although mainly between 8.5 and 7 Ma. This episode led to the construction of a high stratovolcano and its associated laharic apron. The edifice collapsed several times and produced gigantic debris-avalanche deposits that are widespread in the Cantal and as far as 40 km from its centre. The last stages of trachyandesitic activity were synchronous with the emplacement of phonolitic domes between 7.5 and 5.5 Ma. This intrusive event was followed by extensive basaltic lava flows that covered most of the Cantal. The present geometry of the Cantal volcano is the result of these phases of construction and cataclysmic destruction followed by intense glacial and periglacial erosion. The ages of emplacement of the debris-avalanche deposits are now well constrained by abundant isotopic data obtained from the overlying, underlying and included blocks. They imply that several large debris-avalanches affected the flanks of the Cantal volcano between 8.0 and 6.8 Ma. The deposits are in chronological order and separated by episodes of volcanic construction: -- the deposits in the north and east (Rhues, Veronne, Impradine, Santoire, Alagnon Chevade valleys), dated at before 7,4 Ma, form a highly discontinuous, thin eroded layer that is overlain by a thick volcanoclastic laharic piedmont derived from the subsequent phases of volcanic construction; -- the deposits in the west (Marilhou, Mars, Maronne, Aspre, Bertrande valleys) are dated at between 7.2 et 7.4 Ma; -- the deposits in the southwest (Doire, Authre, Jordanne, Cere and Epie valleys) are dated at between 7.4 and 6.8 Ma; -- the deposits in the south (Goul and Brezons valleys) younger than 7.1 Ma and emplaced before the Cere deposit. The absence of a laharic unit on top of the southwestern debris-avalanche deposits is in agreement with this succession of volcanic construction and destruction, as it implies the absence of any major volcanic construction after the last gravitational collapse. All the other sectors are characterized by thick debris-flow deposits overlying the debris-avalanche deposits. This chronological succession of events invalidates the previously proposed debris-avalanche chronologies. The present-day total volume of debris-avalanche deposits is around 245 km 3 for a total volcanic volume of 385 km 3 . Individual debris-avalanche bodies have volumes of several tens of km 3 . Well-characterized prehistoric and historic debris-avalanche bodies have height/length ratios around 0.1. Taking this good correlation into account suggests altitudes above 3000 m for the Cantal paleovolcano and explains the high paleoslopes observed in its central part. Previous models required the existence of a gigantic caldera ("fosse volcano-tectonique") in the central part of the volcano to account for the abundant "pyroclastic rocks" now interpreted as debris-avalanche deposits. This caldera and smaller ones were geophysically and geochronologically documented. New geophysical and geological expertise, however, has revealed the absence of such features. The detailed mapping has shown that the Cantal stratovolcano is mainly the result of several phases of construction and destruction over a relatively short period from 8.5 to 6.5 Ma. The construction phases led to the edification, over several hundred thousand years, of trachyandesitic volcanoes (25 km in diameter and more than 3000 m high) surrounded by debris deposits (laharic piedmont, 40 km in diameter). Due to the high viscosity of the trachyandesitic material, each construction phase resulted in major gravitational collapse, causing a large debris avalanche talus (70 km in diameter) around the central volcano. The last collapse in the southwest was not followed by a construction event, as indicated by the absence of overlying debris-flow deposits and by the flat morphology sealed by the upper basaltic flows.
APA, Harvard, Vancouver, ISO, and other styles
2

Westercamp, D., and H. Traineau. "Schema hydrogeologique et geothermique d'un stratovolcan d'arc insulaire; exemple de la montagne Pelee, Martinique (Antilles francaises)." Bulletin de la Société Géologique de France III, no. 6 (November 1, 1987): 1063–73. http://dx.doi.org/10.2113/gssgfbull.iii.6.1063.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Legendre, Christelle, Martial Caroff, Hervé Leyrit, Pierre Nehlig, and Denis Thièblemont. "Les premières phases d'édification du stratovolcan du Cantal (Massif central, France) entre 9,5 et 8,0 Ma : géologie et géochimie du secteur de l'Élancèze." Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science 332, no. 10 (May 2001): 617–24. http://dx.doi.org/10.1016/s1251-8050(01)01592-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Chernyshev, Igor V., Vlastimil Konečný, Jaroslav Lexa, Vladimir A. Kovalenker, Stanislav Jeleň, Vladimir A. Lebedev, and Yurij V. Goltsman. "K-Ar and Rb-Sr geochronology and evolution of the Štiavnica Stratovolcano (Central Slovakia)." Geologica Carpathica 64, no. 4 (August 1, 2013): 327–60. http://dx.doi.org/10.2478/geoca-2013-0023.

Full text
Abstract:
Abstract The Štiavnica Stratovolcano in Central Slovakia is the largest volcano in the Neogene to Quaternary Carpathian volcanic arc. A large caldera, an extensive subvolcanic intrusive complex and a resurgent horst with late stage rhyolite volcanites are the most characteristic features. The results of new K-Ar and Rb-Sr isotope dating using more sophisticated methodical approaches have changed our view on the timing of volcanic and intrusive activity. K-Ar dating of groundmass fractions combined with Rb-Sr isochron dating in the cases of possible rejuvenation has provided highly reliable results. The lifespan of the stratovolcano is apparently shorter than assumed earlier. Evolution of the stratovolcano took place in five stages during the Early Badenian to beginning of Early Pannonian time: (1) construction of the extensive andesite stratovolcano during the interval 15.0-13.5 Ma; (2) denudation of the volcano concluded with the initial subsidence of a caldera and the contemporaneous emplacement of a subvolcanic intrusive complex of diorite, granodiorite, granodiorite porphyries and quartz-diorite porphyries during the interval 13.5-12.9 Ma; (3) subsidence of the caldera and its filling by differentiated andesites during the interval 13.1-12.7 Ma - volcanic activity overlapping with the emplacement of the youngest intrusions; (4) renewed explosive and effusive activity of less differentiated andesites during the interval 12.7-12.2 Ma; (5) uplift of the resurgent horst in the central part of the caldera accompanied by rhyolite volcanic/intrusive activity during the interval 12.2-11.4 Ma. Extensive epithermal mineralization was contemporaneous with the uplift of the resurgent horst and rhyolite volcanic activity and continued till 10.7 Ma
APA, Harvard, Vancouver, ISO, and other styles
5

Díaz-González, Lorena, and René Cruz-Huicochea. "Application of discordancy and significance statistical tests for the comparison of dacitic volcanism from the central part of the Mexican Volcanic Belt." Nova Scientia 6, no. 11 (October 8, 2014): 158. http://dx.doi.org/10.21640/ns.v6i11.78.

Full text
Abstract:
Our aim is to show a statistical procedure along with two new computer programs (DODESSYS and UDASYS). For this task we compiled a database of 249 samples of dacite coming from four closely located Mexican Volcanic Belt (MVB) areas: monogenetic volcanoes from the Sierra de Chichinautzin and Valle de México, the Nevado de Toluca stratovolcano, the Iztaccíhuatl stratovolcano and the Popocatépetl stratovolcano. The discordancy and significance (ANOVA –ANalysis Of Variance–, Fishers´ F and Student´s t) statistical tests were applied at 99% confidence level. The final statistical was calculated for 98 geochemical parameters, these include major oxides, rare earth elements, trace elements and additional parameters, as well as log-ratio parameters used in new tectonic discrimination diagrams. These geochemical parameters were treated as univariate statistical samples and were classified according with the four MVB regions. Discordancy statistical tests detected discordant outliers in 124 (amount to about 35%) statistical samples. ANOVA tests showed significant differences among all groups in 32 parameters. The similarities and differences between the log-ratios parameters elements may eventually be useful in future to propose tectonic discrimination diagrams from a representative database.
APA, Harvard, Vancouver, ISO, and other styles
6

Reid, Mark E., Sarah B. Christian, and Dianne L. Brien. "Gravitational stability of three-dimensional stratovolcano edifices." Journal of Geophysical Research: Solid Earth 105, B3 (March 10, 2000): 6043–56. http://dx.doi.org/10.1029/1999jb900310.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Fauquette, Séverine, Jean-Pierre Suc, Speranta-Maria Popescu, François Guillocheau, Sophie Violette, Anne Jost, Cécile Robin, Justine Briais, and Guillaume Baby. "Pliocene uplift of the Massif Central (France) constrained by the palaeoelevation quantified from the pollen record of sediments preserved along the Cantal Stratovolcano (Murat area)." Journal of the Geological Society 177, no. 5 (May 27, 2020): 923–38. http://dx.doi.org/10.1144/jgs2020-010.

Full text
Abstract:
The French Massif Central is a key basement relief. This region experienced an intense period of alkaline volcanism, beginning with the Cantal Stratovolcano at 11 Ma and ending at 3 Ma. To quantify the palaeoelevation of the Cantal Stratovolcano and to replace it in the frame of the uplift history of the Massif Central, we first reconstructed the vegetation and climate based on a pollen analysis of the Murat diatomites, which were deposited in a maar lake. The vegetation was organized in three different belts: a Glyptostrobus swamp around the lake; a mixed forest; and, at higher altitudes, a conifer forest. The climate estimated using the climatic amplitude method indicates temperatures between 11.4 and 17°C. Using these estimates and comparison with contemporaneous sites, we infer a palaeoelevation for Murat between 710 and 930 m a.s.l. This site was therefore uplifted by 130 to perhaps 350 m during the Early Pliocene, leading to a reorganization of the drainage pattern and the capture of rivers flowing from the northern edge of the Massif Central towards the Atlantic Ocean. Our study confirms that the Cantal Stratovolcano was a high volcano (>2500 m) before its progressive dismantling during glacial episodes in the Pleistocene.
APA, Harvard, Vancouver, ISO, and other styles
8

Cox, Daniel, Sebastian F. L. Watt, Frances E. Jenner, Alan R. Hastie, and Samantha J. Hammond. "Chalcophile element processing beneath a continental arc stratovolcano." Earth and Planetary Science Letters 522 (September 2019): 1–11. http://dx.doi.org/10.1016/j.epsl.2019.06.017.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Aydar, Erkan, and Alain Gourgaud. "The geology of Mount Hasan stratovolcano, central Anatolia, Turkey." Journal of Volcanology and Geothermal Research 85, no. 1-4 (October 1998): 129–52. http://dx.doi.org/10.1016/s0377-0273(98)00053-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Urrutia-Fucugauchi, J., J. H. Flores-Ruiz, A. Arciniega-Ceballos, Israel Hernández, and Carlos Anaya. "Aeromagnetic survey over an active stratovolcano in central Mexico." Leading Edge 21, no. 6 (June 2002): 560–63. http://dx.doi.org/10.1190/1.1490651.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Rose, William I. "Santa María, Guatemala: Bimodal soda-rich calc-alkalic stratovolcano." Journal of Volcanology and Geothermal Research 33, no. 1-3 (August 1987): 109–29. http://dx.doi.org/10.1016/0377-0273(87)90056-4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Zimbelman, D. R., R. J. Watters, I. R. Firth, G. N. Breit, and G. Carrasco-Nunez. "Stratovolcano stability assessment methods and results from Citlalt�petl, Mexico." Bulletin of Volcanology 66, no. 1 (January 1, 2004): 66–79. http://dx.doi.org/10.1007/s00445-003-0296-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
13

Stevenson, John A., David W. McGarvie, John L. Smellie, and Jennie S. Gilbert. "Subglacial and ice-contact volcanism at the Öræfajökull stratovolcano, Iceland." Bulletin of Volcanology 68, no. 7-8 (February 18, 2006): 737–52. http://dx.doi.org/10.1007/s00445-005-0047-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Palacios, David. "Recent geomorphologic evolution of a glaciovolcanic active stratovolcano: Popocatepetl (Mexico)." Geomorphology 16, no. 4 (August 1996): 319–35. http://dx.doi.org/10.1016/0169-555x(96)00003-7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
15

Amjadi, Ahmad Ala. "An application of magnetotelluric data inversion in a stratovolcano region." Physics & Astronomy International Journal 4, no. 6 (December 23, 2020): 207–15. http://dx.doi.org/10.15406/paij.2020.04.00224.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Branca, Stefano, Coltelli, Mauro, and Groppelli, Gianluca. "Geological evolution of a complex basaltic stratovolcano: Mount Etna, Italy." Italian Journal of Geosciences, Vol. 130, n. 3 (December 1, 2011): 306–17. http://dx.doi.org/10.3301/ijg.2011.13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Damaschke, Magret, Shane J. Cronin, Katherine A. Holt, Mark S. Bebbington, and Alan G. Hogg. "A 30,000 yr high-precision eruption history for the andesitic Mt. Taranaki, North Island, New Zealand." Quaternary Research 87, no. 1 (January 2017): 1–23. http://dx.doi.org/10.1017/qua.2016.11.

Full text
Abstract:
AbstractTephra layers from 11 sediment cores were examined from a series of closely spaced lake and peat sites, which form an arc around the andesitic stratovolcano Mt. Taranaki, North Island, New Zealand. A new high-resolution composite tephra-deposition record was built, encompassing at least 228 tephra-producing eruptions over the last 30 cal ka BP and providing a basis for understanding variations in magnitude and frequency of explosive volcanism at a typical andesitic volcano. Intersite correlation and geochemical fingerprinting of almost all tephra layers was achieved using electron microprobe–determined titanomagnetite phenocryst and volcanic glass shard compositions, in conjunction with precise age determination of the tephra layers based on continuous down-core radiocarbon dating. Compositional variation within these data allowed the overall eruption record to be divided into six individual tephra sequences. This geochemical/stratigraphic division provides a broad basis for widening correlation to incomplete tephra sequences, with confident correlations to specific, distal Taranaki-derived tephra layers found as far as 270 km from the volcano. Furthermore, this tephrostratigraphical record is one of the most continuous and detailed for an andesitic stratovolcano. It suggests two general patterns of magmatic evolution, characterized by intricate geochemical variations indicating a complex storage and plumbing system beneath the volcano.
APA, Harvard, Vancouver, ISO, and other styles
18

Aydar, Erkan, Hasan Bayhan, and Alain Gourgaud. "The lamprophyres of Afyon stratovolcano, western Anatolia, Turkey: description and genesis." Comptes Rendus Geoscience 335, no. 3 (March 2003): 279–88. http://dx.doi.org/10.1016/s1631-0713(03)00049-x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
19

Kralj, Polona. "Facies architecture of the Upper Oligocene submarine Smrekovec stratovolcano, Northern Slovenia." Journal of Volcanology and Geothermal Research 247-248 (December 2012): 122–38. http://dx.doi.org/10.1016/j.jvolgeores.2012.07.016.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Kosterov, Andrei, Gennaro Conte, Avto Goguitchaichvili, and Jaime Urrutia-Fucugauchi. "Low-temperature magnetic properties of andesitic rocks from Popocatepetl stratovolcano, Mexico." Earth, Planets and Space 61, no. 1 (January 2009): 133–42. http://dx.doi.org/10.1186/bf03352893.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

Vander Auwera, Jacqueline, Olivier Namur, Adeline Dutrieux, Camilla Maya Wilkinson, Morgan Ganerød, Valentin Coumont, and Olivier Bolle. "Mantle Melting and Magmatic Processes Under La Picada Stratovolcano (CSVZ, Chile)." Journal of Petrology 60, no. 5 (April 1, 2019): 907–44. http://dx.doi.org/10.1093/petrology/egz020.

Full text
Abstract:
Abstract Where and how arc magmas are generated and differentiated are still debated and these questions are investigated in the context of part of the Andean arc (Chilean Southern Volcanic Zone) where the continental crust is thin. Results are presented for the La Picada stratovolcano (41°S) that belongs to the Central Southern Volcanic Zone (CSVZ) (38°S–41·5°S, Chile) which results from the subduction of the Nazca plate beneath the western margin of the South American continent. Forty-seven representative samples collected from different units of the volcano define a differentiation trend from basalt to basaltic andesite and dacite (50·9 to 65·6 wt % SiO2). This trend straddles the tholeiitic and calc-alkaline fields and displays a conspicuous compositional Daly Gap between 57·0 and 62·7 wt % SiO2. Interstitial, mostly dacitic, glass pockets extend the trend to 76·0 wt % SiO2. Mineral compositions and geochemical data indicate that differentiation from the basaltic parent magmas to the dacites occurred in the upper crust (∼0·2 GPa) with no sign of an intermediate fractionation stage in the lower crust. However, we have currently no precise constraint on the depth of differentiation from the primary magmas to the basaltic parent magmas. Stalling of the basaltic parent magmas in the upper crust could have been controlled by the occurrence of a major crustal discontinuity, by vapor saturation that induced volatile exsolution resulting in an increase of melt viscosity, or by both processes acting concomitantly. The observed Daly Gap thus results from upper crustal magmatic processes. Samples from both sides of the Daly Gap show contrasting textures: basalts and basaltic andesites, found as lavas, are rich in macrocrysts, whereas dacites, only observed in crosscutting dykes, are very poor in macrocrysts. Moreover, modelling of the fractional crystallization process indicates a total fractionation of 43% to reach the most evolved basaltic andesites. The Daly Gap is thus interpreted as resulting from critical crystallinity that was reached in the basaltic andesites within the main storage region, precluding eruption of more evolved lavas. Some interstitial dacitic melt was extracted from the crystal mush and emplaced as dykes, possibly connected to small dacitic domes, now eroded away. In addition to the overall differentiation trend, the basalts to basaltic andesites display variable MgO, Cr and Ni contents at a given SiO2. Crystal accumulation and high pressure fractionation fail to predict this geochemical variability which is interpreted as resulting from variable extents of fractional crystallization. Geothermobarometry using recalculated primary magmas indicates last equilibration at about 1·3–1·5 GPa and at a temperature higher than the anhydrous peridotite solidus, pointing to a potential role of decompression melting. However, because the basalts are enriched in slab components and H2O compared to N-MORB, wet melting is highly likely.
APA, Harvard, Vancouver, ISO, and other styles
22

Nechayev, Andrei. "Magma, Crust and Fluid: Critical Conditions of their Interaction and Types of Volcanic Eruptions." Applied Physics Research 7, no. 6 (November 4, 2015): 70. http://dx.doi.org/10.5539/apr.v7n6p70.

Full text
Abstract:
<p class="1Body">The mechanism of Gas-Liquid Imbalance (GLI-mechanism) is applied to the theoretical description of the behavior of the magmatic system for different types of volcanic eruptions. It is shown that physical interaction of contacting volumes of magma and gaseous fluid under certain critical conditions can lead to the formation of stratovolcano and caldera. With unified theoretical positions the development of Strombolian, Plinian, Hawaiian, areal and high-explosive volcanic eruption is discussed.</p>
APA, Harvard, Vancouver, ISO, and other styles
23

Hasan, Muhammad Mifta, Hetty Triastuty, Bagus Jaya Santosa, and Amien Widodo. "HYPOCENTER DISTRIBUTION OF LOW FREQUENCY EVENT AT PAPANDAYAN VOLCANO." Jurnal Neutrino 9, no. 1 (October 31, 2016): 10. http://dx.doi.org/10.18860/neu.v9i1.3655.

Full text
Abstract:
<p class="abstrak">Papandayan volcano is a stratovolcano with irregular cone-shaped has eight craters around the peak. The most active crater in Papandayan is a Mas crater. Distribution of relocated event calculated using Geiger Adaptive Damping Algorithm (GAD) shows that the epicenter of the event centered below Mas crater with maximum rms 0.114. While depth of the hypocenter range between 0-2 km and 5-6 km due to activity of steam and gas.</p>
APA, Harvard, Vancouver, ISO, and other styles
24

Bourassa, Adam E., Alan Robock, William J. Randel, Terry Deshler, Landon A. Rieger, Nicholas D. Lloyd, E. J. (Ted) Llewellyn, and Douglas A. Degenstein. "Large Volcanic Aerosol Load in the Stratosphere Linked to Asian Monsoon Transport." Science 337, no. 6090 (July 5, 2012): 78–81. http://dx.doi.org/10.1126/science.1219371.

Full text
Abstract:
The Nabro stratovolcano in Eritrea, northeastern Africa, erupted on 13 June 2011, injecting approximately 1.3 teragrams of sulfur dioxide (SO2) to altitudes of 9 to 14 kilometers in the upper troposphere, which resulted in a large aerosol enhancement in the stratosphere. The SO2 was lofted into the lower stratosphere by deep convection and the circulation associated with the Asian summer monsoon while gradually converting to sulfate aerosol. This demonstrates that to affect climate, volcanic eruptions need not be strong enough to inject sulfur directly to the stratosphere.
APA, Harvard, Vancouver, ISO, and other styles
25

Kürkçüoglu, Biltan, Erdal Sen, Erkan Aydar, Alain Gourgaud, and Niyazi Gündogdu. "Geochemical approach to magmatic evolution of Mt. Erciyes stratovolcano Central Anatolia, Turkey." Journal of Volcanology and Geothermal Research 85, no. 1-4 (October 1998): 473–94. http://dx.doi.org/10.1016/s0377-0273(98)00067-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
26

Biggs, J., P. Mothes, M. Ruiz, F. Amelung, T. H. Dixon, S. Baker, and S.-H. Hong. "Stratovolcano growth by co-eruptive intrusion: The 2008 eruption of Tungurahua Ecuador." Geophysical Research Letters 37, no. 21 (November 2010): n/a. http://dx.doi.org/10.1029/2010gl044942.

Full text
APA, Harvard, Vancouver, ISO, and other styles
27

D'Auria, Luca, Bruno Massa, and Ada De Matteo. "The stress field beneath a quiescent stratovolcano: The case of Mount Vesuvius." Journal of Geophysical Research: Solid Earth 119, no. 2 (February 2014): 1181–99. http://dx.doi.org/10.1002/2013jb010792.

Full text
APA, Harvard, Vancouver, ISO, and other styles
28

Zernack, Anke V., Shane J. Cronin, Mark S. Bebbington, Richard C. Price, Ian E. M. Smith, Robert B. Stewart, and Jonathan N. Procter. "Forecasting catastrophic stratovolcano collapse: A model based on Mount Taranaki, New Zealand." Geology 40, no. 11 (November 2012): 983–86. http://dx.doi.org/10.1130/g33277.1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

Lambert, M. B. "Stromatolites of the late Archean Back River stratovolcano, Slave structural province, Northwest Territories, Canada." Canadian Journal of Earth Sciences 35, no. 3 (March 1, 1998): 290–301. http://dx.doi.org/10.1139/e97-115.

Full text
Abstract:
Nine stromatolite localities in the Back River volcanic complex occur at the boundary between 2692 Ma felsic dome-flow complexes, marking the latest eruptions of this stratovolcano, and overlying turbiditic sedimentary rocks of the Beechy Lake Group, Yellowknife Supergroup. Stromatolites form lenses isolated within coarse volcanic breccia at margins of felsic dome-flow complexes, and 2 m thick bioherms that extend laterally for hundreds of metres. Thin units contain wavy laminae and open-spaced, linked mounds, which form thin encrustations on breccia blocks, or clusters of mounds with low synoptic relief. Thick successions comprise undulatory, flat laminated dolomite that contains wrinkled wavy laminae, pseudocolumnar forms, and locally elongate, low-relief mounds. These units typically contain millimetre-scale layers of fine volcanic ash at regular intervals, testifying periodic explosive eruptions during deposition of microbial mats. The stromatolites, which are identified by gross morphology and distinctive laminae, are all stratiform types. Carbonate units all occur on the seaward side of the volcanic dome-flow complexes that straddled the shoreline around the volcano. The stromatolites probably represent isolated microbial communities that may have developed around areas of fumarolic (or hydrothermal) activity associated with these domes. Stratigraphy seaward from the domes comprises carbonate-cemented dome-flanking breccia, stromatolitic and oolitic carbonate, pebbly rhyolite volcarenite, carbonaceous mudstones, banded iron formation, and turbidites. Thus the stromatolites mark a local environment where life flourished in an Archean sea that lapped onto active volcanic domes along the shallow flanks of an emergent stratovolcano.
APA, Harvard, Vancouver, ISO, and other styles
30

BRYAN, S. E., J. MARTÍ, and R. A. F. CAS. "Stratigraphy of the Bandas del Sur Formation: an extracaldera record of Quaternary phonolitic explosive eruptions from the Las Cañadas edifice, Tenerife (Canary Islands)." Geological Magazine 135, no. 5 (September 1998): 605–36. http://dx.doi.org/10.1017/s0016756897001258.

Full text
Abstract:
Explosive volcanism has dominated the large phonolitic shield volcano of Tenerife, the Las Cañadas edifice, for the last 1.5 m.y. Pyroclastic deposits of the Bandas del Sur Formation are exposed along the southern flanks, and record the last two of at least three long-term cycles of caldera-forming explosive eruptions. Each cycle began with flank fissure eruptions of alkali basalt lava, followed by minor eruptions of basanite to phonotephrite lavas. Minor phonotephritic to phonolitic lava effusions also occurred on the flanks of the edifice during the latter stages of the second explosive cycle. Non-welded plinian fall deposits and ignimbrites are the dominant explosive products preserved on the southern flanks. Of these, a significant volume has been dispersed offshore. Many pyroclastic units of the second explosive cycle exhibit compositional zonation. Banded pumice occurs in most units of the third (youngest) explosive cycle, and ignimbrites typically contain mixed phenocryst assemblages, indicating the role of magma mixing/mingling prior to eruption. At least four major eruptions of the third cycle began with phreatomagmatic activity, producing lithic-poor, accretionary lapilli-bearing fallout and/or surge deposits. The repeated, brief phase of phreatomagmatism at the onset of these eruptions is interpreted as reflecting an exhaustive water supply, probably a small caldera lake that was periodically established during the third cycle. Accidental syenite becomes an increasingly important lithic clast type in ignimbrites up-sequence, and is interpreted as recording the progressive development of a plutonic complex beneath the summit caldera.Successive eruptions during each explosive cycle increased in volume, with the largest eruption occurring at the end of the cycle. More than ten major explosive eruptions vented moderately large volumes (1−[ges ]10 km3) of phonolitic magma during the last two cycles. Culminating each explosive cycle was the emplacement of relatively large volume (>5−10 km3) ignimbrites with coarse, vent-derived lithic breccias, interpreted to record a major phase of caldera collapse. In the extracaldera record, explosive cycles are separated by ∼0.2 m.y. periods of non-explosive activity. Repose periods were characterized by erosion, remobilization of pyroclastic deposits by discharge events, and pedogenesis. The current period of non-explosive activity is characterized by the construction of the Teide-Pico Viejo stratovolcanic complex within the summit caldera. This suggests that eruptive hiatuses in the extracaldera record may reflect effusive activity and stratovolcano or shield-building phases within the summit caldera. Alternating effusive and explosive cycles have thus been important in the volcanic evolution of the Las Cañadas edifice.
APA, Harvard, Vancouver, ISO, and other styles
31

Caniaux, Guy. "Statistical analysis of the volcanic eruption frequency in the azores islands : a contribution to risk assessment." Bulletin de la Société Géologique de France 176, no. 1 (January 1, 2005): 107–20. http://dx.doi.org/10.2113/176.1.107.

Full text
Abstract:
Abstract The datations of the last eruptive events which have occurred on 13 active volcanic complexes of the Azores are presented. By supposing that these events follow a statistical Poisson distribution, we estimate the occurrence period of these events, as well as the eruption probabilities for the next 300 years. Pico Mountain, Região dos Picos (São Miguel Island), the stratovolcano of Sete Cidades (São Miguel Island), the linear volcanic complexes of São Roque – Piedade (Pico Island) and of Capelo (Faial Island) must be considered as the most active volcanoes of the archipelago. The eruption styles of next eruptions are also specified.
APA, Harvard, Vancouver, ISO, and other styles
32

Oyan, Vural, Mehmet Keskin, Vladimir A. Lebedev, Andrey V. Chugaev, and Evgenii V. Sharkov. "Magmatic evolution of the Early Pliocene Etrüsk stratovolcano, Eastern Anatolian Collision Zone, Turkey." Lithos 256-257 (July 2016): 88–108. http://dx.doi.org/10.1016/j.lithos.2016.03.017.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

del Potro, Rodrigo, Harry Pinkerton, and Marcel Hürlimann. "An analysis of the morphological, geological and structural features of Teide stratovolcano, Tenerife." Journal of Volcanology and Geothermal Research 181, no. 1-2 (March 2009): 89–105. http://dx.doi.org/10.1016/j.jvolgeores.2008.12.013.

Full text
APA, Harvard, Vancouver, ISO, and other styles
34

Gaylord, D. R., and V. E. Neall. "Subedifice collapse of an andesitic stratovolcano: The Maitahi Formation, Taranaki Peninsula, New Zealand." Geological Society of America Bulletin 124, no. 1-2 (August 19, 2011): 181–99. http://dx.doi.org/10.1130/b30141.1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

Kim, Sang-Wan, Joong-Sun Won, Jeong Woo Kim, Wooil M. Moon, and Kyung Duck Min. "Multi temporal JERS-1 SAR investigation of Mt. Baekdu stratovolcano using differential interferometry." Geosciences Journal 5, no. 4 (December 2001): 301–12. http://dx.doi.org/10.1007/bf02912701.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

Ekinci, Yunus Levent, Aydin Büyüksaraç, Özcan Bektaş, and Can Ertekin. "Geophysical Investigation of Mount Nemrut Stratovolcano (Bitlis, Eastern Turkey) Through Aeromagnetic Anomaly Analyses." Pure and Applied Geophysics 177, no. 7 (February 13, 2020): 3243–64. http://dx.doi.org/10.1007/s00024-020-02432-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Gudmundsson, A. "Strengths and strain energies of volcanic edifices: implications for eruptions, collapse calderas, and landslides." Natural Hazards and Earth System Sciences 12, no. 7 (July 19, 2012): 2241–58. http://dx.doi.org/10.5194/nhess-12-2241-2012.

Full text
Abstract:
Abstract. Natural hazards associated with volcanic edifices depend partly on how fracture resistant the edifices are, i.e. on their strengths. Observations worldwide indicate that large fluid-driven extension fractures (dikes, inclined sheets), shear fractures (landslides), and mixed-mode fractures (ring dikes and ring faults) normally propagate more easily in a basaltic edifice (shield volcano) than in a stratovolcano. For example, dike-fed eruptions occur once every few years in many basaltic edifices but once every 102-3 yr in many stratovolcanoes. Large landslides and caldera collapses also appear to be more common in a typical basaltic edifice/shield volcano than in a typical stratovolcano. In contrast to a basaltic edifice, a stratovolcano is composed of mechanically dissimilar rock layers, i.e. layers with mismatching elastic properties (primarily Young's modulus). Elastic mismatch encourages fracture deflection and arrest at contacts and increases the amount of energy needed for a large-scale edifice failure. Fracture-related hazards depend on the potential energy available to propagate the fractures which, in turn, depends on the boundary conditions during fracture propagation. Here there are two possible scenarios: one in which the outer boundary of the volcanic edifice or rift zone does not move during the fracture propagation (constant displacement); the other in which the boundary moves (constant load). In the former, the total potential energy is the strain energy stored in the volcano before fracture formation; in the latter, the total potential energy is the strain energy plus the work done by the forces moving the boundary. Constant-displacement boundary conditions favor small eruptions, landslides, and caldera collapses, whereas constant-load conditions favor comparatively large eruptions, landslides, and collapses. For a typical magma chamber (sill-like with a diameter of 8 km), the strain energy change due to magma-chamber inflation is estimated at the order of 1014 J (0.1 PJ). For comparison, the surface energy needed to form a typical feeder dike is of the same order of magnitude, or 1014 J. There are several processes besides magma-chamber inflation that may increase the strain energy in a volcano before eruption. Thus, during a typical unrest period with magma-chamber inflation, the added strain energy in the volcano is large enough for a typical feeder dike to form. An injected dike, however, only reaches the surface and becomes a feeder if it is able to propagate through the numerous layers and contacts that tend to deflect or arrest dikes. The strong elastic mismatch between layers that constitute stratovolcanoes not only encourages fracture arrest, but also the storage of more strain energy (than in a typical basaltic edifice/shield volcano) before fracture formation and failure. It is thus through producing materials of widely different mechanical properties that stratovolcanoes become strong and resilient.
APA, Harvard, Vancouver, ISO, and other styles
38

ASAI, Kazuyoshi, Hiroshi SATAKE, and Maki TSUJIMURA. "Characteristics of groundwater flow in Ontake stratovolcano, central Japan, with reference to erosion conditions." Journal of Groundwater Hydrology 48, no. 4 (2006): 279–96. http://dx.doi.org/10.5917/jagh1987.48.279.

Full text
APA, Harvard, Vancouver, ISO, and other styles
39

Collard, Nathalie, Loïc Peiffer, and Yuri Taran. "Heat and fluid flow dynamics of a stratovolcano: The Tacaná Volcanic Complex, Mexico-Guatemala." Journal of Volcanology and Geothermal Research 400 (August 2020): 106916. http://dx.doi.org/10.1016/j.jvolgeores.2020.106916.

Full text
APA, Harvard, Vancouver, ISO, and other styles
40

Nemčok, M., J. N. Moore, R. Allis, and J. McCulloch. "Fracture development within a stratovolcano: the Karaha-Telaga Bodas geothermal field, Java volcanic arc." Geological Society, London, Special Publications 231, no. 1 (2004): 223–42. http://dx.doi.org/10.1144/gsl.sp.2004.231.01.13.

Full text
APA, Harvard, Vancouver, ISO, and other styles
41

Bathke, H., M. Shirzaei, and T. R. Walter. "Inflation and deflation at the steep-sided Llaima stratovolcano (Chile) detected by using InSAR." Geophysical Research Letters 38, no. 10 (May 2011): n/a. http://dx.doi.org/10.1029/2011gl047168.

Full text
APA, Harvard, Vancouver, ISO, and other styles
42

Maden, Nafiz. "Curie-point Depth from Spectral Analysis of Magnetic Data in Erciyes Stratovolcano (Central TURKEY)." Pure and Applied Geophysics 167, no. 3 (November 25, 2009): 349–58. http://dx.doi.org/10.1007/s00024-009-0017-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
43

Andrade, S. Daniel, and Benjamin van Wyk de Vries. "Structural analysis of the early stages of catastrophic stratovolcano flank-collapse using analogue models." Bulletin of Volcanology 72, no. 7 (March 30, 2010): 771–89. http://dx.doi.org/10.1007/s00445-010-0363-x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
44

Harp, Andrew G. "Magma propagation and emplacement within the central intrusive complex of Summer Coon stratovolcano, Colorado." Journal of Volcanology and Geothermal Research 419 (November 2021): 107372. http://dx.doi.org/10.1016/j.jvolgeores.2021.107372.

Full text
APA, Harvard, Vancouver, ISO, and other styles
45

Kovanen, D. J., D. J. Easterbrook, and P. A. Thomas. "Holocene eruptive history of Mount Baker, Washington." Canadian Journal of Earth Sciences 38, no. 9 (September 1, 2001): 1355–66. http://dx.doi.org/10.1139/e01-025.

Full text
Abstract:
New radiocarbon dates associated with volcanic ashes and lahars improve our understanding of the volcanic activity of Mount Baker, a 3284 m-high, andesitic stratovolcano in the North Cascades, Washington. The geologic record shows that during the Holocene, four ashes and at least seven lahars were deposited on the flanks of Mount Baker and in the nearby North Cascades. Here, we document the ages of three previously undated ashes, the Schriebers Meadow scoria, the Rocky Creek ash, and the Cathedral Crag ash. Because Mount Baker lies at the head of the Nooksack drainage, eruptive activity may influence areas downstream. Understanding the timing and characteristics of volcanic eruptions from Mount Baker is useful from volcanic hazard and paleoclimatological perspectives.
APA, Harvard, Vancouver, ISO, and other styles
46

Muñoz, Patricio A., Patricio A. Flores, Freddy A. Boehmwald, and Jenny M. Blamey. "Thermophilic bacteria present in a sample from Fumarole Bay, Deception Island." Antarctic Science 23, no. 6 (June 27, 2011): 549–55. http://dx.doi.org/10.1017/s0954102011000393.

Full text
Abstract:
AbstractDeception Island, an active stratovolcano located in the South Shetland Islands, Antarctica, provides excellent conditions for the thermophilic bacteria growth because of high ground temperatures in specific areas, such as Fumarole Bay where the temperatures are above the mesophilic range. Denaturing Gradient Gel Electrophoresis (DGGE) was used with the 16S ribosomal gene to analyse cultures of thermophilic bacteria from a soil sample taken from Fumarole Bay. Nine bands were sequenced and analysed from DGGE and they indicated the presence of bacteria from the generaGeobacillus,Bacillus,Brevibacillus,Thermusand uncultured sulphate reducing bacteria. Some of which have been reported in other Antarctic geothermal sites.Geobacillus,BacillusandBrevibacillusgenera were successfully cultivated in an enriched medium. A pure culture of one thermophilicGeobacillusbacterium was obtained closely related toGeobacillus jurassicus.
APA, Harvard, Vancouver, ISO, and other styles
47

Martínez-Carrillo, M. A., C. Solís, I. Hernández Bautista, R. Junco Sánchez, M. Rodríguez-Ceja, M. E. Ortiz, and E. Chávez-Lomelí. "Radiocarbon Dating of Underwater Archaeological Objects from the Nevado de Toluca, Mexico." Radiocarbon 59, no. 6 (December 2017): 1705–12. http://dx.doi.org/10.1017/rdc.2017.106.

Full text
Abstract:
ABSTRACTThe Nevado de Toluca is a stratovolcano located in the southwest of the Toluca Valley in central Mexico. At a height of around 4200 m there are two crater lakes: El Sol and La Luna. Since Precolumbian times, people in the surrounding valleys carried out rituals and deposited offerings into the lakes. After the Spanish conquest, these rituals were kept alive clandestinely. Currently, reminiscent of Mesoamerican rituals subsist. Due to the long duration of the ritual at the Nevado de Toluca, it is important to date the materials recovered in the underwater and terrestrial archaeological explorations. This article proposes a chronology of Prehispanic ritual activities performed in the Nevado de Toluca based on the characterization and radiocarbon (14C) dating performed to materials from the volcano’s lakes.
APA, Harvard, Vancouver, ISO, and other styles
48

Arnold, D. W. D., J. Biggs, H. R. Dietterich, S. Vallejo Vargas, G. Wadge, and P. Mothes. "Lava flow morphology at an erupting andesitic stratovolcano: A satellite perspective on El Reventador, Ecuador." Journal of Volcanology and Geothermal Research 372 (February 2019): 34–47. http://dx.doi.org/10.1016/j.jvolgeores.2019.01.009.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Gevorgyan, Hripsime, Alexander Repstock, Bernhard Schulz, Khachatur Meliksetian, Christoph Breitkreuz, and Arsen Israyelyan. "Decoding a post-collisional multistage magma system: The Quaternary ignimbrites of Aragats stratovolcano, western Armenia." Lithos 318-319 (October 2018): 267–82. http://dx.doi.org/10.1016/j.lithos.2018.07.024.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Rose, Timothy P., Robert E. Criss, Andrew J. Mughannam, and Michael A. Clynne. "Oxygen isotope evidence for hydrothermal alteration within a Quaternary stratovolcano, Lassen Volcanic National Park, California." Journal of Geophysical Research: Solid Earth 99, B11 (November 10, 1994): 21621–33. http://dx.doi.org/10.1029/94jb02162.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography