Log in

Relevant bibliographies by topics / Marine carbonate system / Journal articles

To see the other types of publications on this topic, follow the link: Marine carbonate system.

Journal articles on the topic 'Marine carbonate system'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 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 'Marine carbonate system.'

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

Mahjoubi, Rachida, Saïd Kamel, Yves Noack, Annie Michard, Daniel Nahon, and Christian Carruesco. "Sr isotopic tracing in a lagoonal system : example of surficial carbonate sediments in the Nador lagoon (northeastern Morocco)." Bulletin de la Société Géologique de France 176, no. 4 (2005): 373–80. http://dx.doi.org/10.2113/176.4.373.

Full text

Abstract:

Abstract The Nador lagoon is the largest one in Morocco and along the Mediterranean. It is located on the northeastern coast near the Rif chain (North Morocco), and it is surrounded by volcanic and sedimentary rocks of various lithofacies. The watershed has an area of about 2200 km2 and is drained by a dense river network. The lagoon dimension is of 115 km2 (25 x 7.5 km) with a depth not exceeding 8 m. The island barrier is 25 km in length and 350 m in average width. The carbonate fraction is the dominant component of the present-day sedimentation in the Nador lagoon. It represents 13 to 48 %

APA, Harvard, Vancouver, ISO, and other styles

2

triyulianti, iis, I. Nyoman Radiarta, Agung Yunanto, Novia Arinda Pradistya, Fikhrul Islami, and Mutiara R Putri. "The Marine Carbonate System at Maluku and Sulawesi Seas." JFMR-Journal of Fisheries and Marine Research 2, no. 3 (2018): 192–207. http://dx.doi.org/10.21776/ub.jfmr.2018.002.03.8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

van Loevezijn, Gerard B. S., and J. G. M. Raven. "Facies patterns and depositional processes in two Frasnian mixed siliciclastic-carbonate systems in the Cantabrian Mountains, northwest Spain." Geologos 26, no. 1 (2020): 1–23. http://dx.doi.org/10.2478/logos-2020-0001.

Full text

Abstract:

AbstractRelative sea level fluctuations during the Frasnian generated two shallow-marine, mixed siliciclastic-carbonate successions in the Devonian Asturo-Leonese Basin. Each system represents a third-order sequence-stratigraphical unit deposited in the same basin during comparable extreme greenhouse conditions without nearby fluvial entry points. Depositional control on the siliciclastic and carbonate distribution was driven by relative sea level fluctuations, basin geometry, availability of sand and the way sediment was distributed by shelf currents. Early Variscan flexural bending of the co

APA, Harvard, Vancouver, ISO, and other styles

4

Melzner, Frank, Felix C. Mark, Brad A. Seibel, and Lars Tomanek. "Ocean Acidification and Coastal Marine Invertebrates: Tracking CO2 Effects from Seawater to the Cell." Annual Review of Marine Science 12, no. 1 (2020): 499–523. http://dx.doi.org/10.1146/annurev-marine-010419-010658.

Full text

Abstract:

In the last few decades, numerous studies have investigated the impacts of simulated ocean acidification on marine species and communities, particularly those inhabiting dynamic coastal systems. Despite these research efforts, there are many gaps in our understanding, particularly with respect to physiological mechanisms that lead to pathologies. In this review, we trace how carbonate system disturbances propagate from the coastal environment into marine invertebrates and highlight mechanistic links between these disturbances and organism function. We also point toward several processes relate

APA, Harvard, Vancouver, ISO, and other styles

5

PIROUZ, MORTAZA, GUY SIMPSON, ABBAS BAHROUDI, and ALI AZHDARI. "Neogene sediments and modern depositional environments of the Zagros foreland basin system." Geological Magazine 148, no. 5-6 (2011): 838–53. http://dx.doi.org/10.1017/s0016756811000392.

Full text

Abstract:

AbstractA sedimentological investigation of the Neogene deposits of the Zagros foreland basin in SW Iran reveals a continuous and largely gradational passage from supratidal and sabkha sediments at the base (represented by the Gachsaran Formation) to carbonates and marine marls (Mishan Formation with basal Guri carbonate member) followed by coastal plain and meandering river deposits (Agha Jari Formation) and finally to braided river gravel sheets (Bakhtyari Formation). This vertical succession is interpreted to represent the southward migration of foreland basin depozones (from distal foredee

APA, Harvard, Vancouver, ISO, and other styles

6

Schulz, K. G., J. Barcelos e Ramos, R. E. Zeebe, and U. Riebesell. "CO<sub>2</sub> perturbation experiments: similarities and differences between dissolved inorganic carbon and total alkalinity manipulations." Biogeosciences 6, no. 10 (2009): 2145–53. http://dx.doi.org/10.5194/bg-6-2145-2009.

Full text

Abstract:

Abstract. Increasing atmospheric carbon dioxide (CO2) through human activities and invasion of anthropogenic CO2 into the surface ocean alters the seawater carbonate chemistry, increasing CO2 and bicarbonate (HCO3−) at the expense of carbonate ion (CO32−) concentrations. This redistribution in the dissolved inorganic carbon (DIC) pool decreases pH and carbonate saturation state (Ω). Several components of the carbonate system are considered potential key variables influencing for instance calcium carbonate precipitation in marine calcifiers such as coccolithophores, foraminifera, corals, mollus

APA, Harvard, Vancouver, ISO, and other styles

7

Dubiel, Stanisław, Adam Zubrzycki, Czesław Rybicki, and Michał Maruta. "Application of Dst Interpretation Results by Log – Log Method in the Pore Space Type Estimation for the Upper Jurassic Carbonate Reservoir Rocks of the Carpathian Foredeep Basement / Interpretacja Testów Wykonywanych Rurowymi Próbnikami Złoża – Rpz w Skałach Węglanowych Górnej Jury Podłoża Zapadliska Przedkarpackiego." Archives of Mining Sciences 57, no. 2 (2012): 413–24. http://dx.doi.org/10.2478/v10267-012-0027-0.

Full text

Abstract:

Abstract In the south part of the Carpathian Foredeep basement, between Bochnia and Ropczyce, the Upper Jurassic (Oxfordian, Kimmeridian and Tithonian) carbonate complex plays important role as a hydrocarbon bearing formation. It consists of shallow marine carbonates deposited in environments of the outer carbonate ramp as reef limestones (dolomites), microbial - sponge or coral biostromes and marly or micrite limestones as well. The inner pore space system of these rocks was affected by different diagenetic processes as calcite cementation, dissolution, dolomitization and most probably by tec

APA, Harvard, Vancouver, ISO, and other styles

8

Kaczmarek, K., G. Langer, G. Nehrke, et al. "Boron incorporation in the foraminifer <i>Amphistegina lessonii</i> under a decoupled carbonate chemistry." Biogeosciences 12, no. 6 (2015): 1753–63. http://dx.doi.org/10.5194/bg-12-1753-2015.

Full text

Abstract:

Abstract. A number of studies have shown that the boron isotopic composition (δ11B) and the B / Ca ratio of biogenic carbonates (mostly foraminifers) can serve as proxies for two parameters of the ocean's carbonate chemistry, rendering it possible to calculate the entire carbonate system. However, the B incorporation mechanism into marine carbonates is still not fully understood and analyses of field samples show species-specific and hydrographic effects on the B proxies complicating their application. Identifying the carbonate system parameter influencing boron incorporation is difficult due

APA, Harvard, Vancouver, ISO, and other styles

9

Kaczmarek, K., G. Langer, G. Nehrke, et al. "Boron incorporation in the foraminifer <i>Amphistegina lessonii</i> under a decoupled carbonate chemistry." Biogeosciences Discussions 11, no. 12 (2014): 16743–71. http://dx.doi.org/10.5194/bgd-11-16743-2014.

Full text

Abstract:

Abstract. A number of studies have shown that the boron isotopic composition (δ11B) and the B/Ca ratio of biogenic carbonates (mostly foraminifers) can serve as proxies for two parameters of the ocean's carbonate chemistry, rendering it possible to calculate the entire carbonate system. However, the B incorporation mechanism into marine carbonates is still not fully understood and analyses of field samples show species specific and hydrographic effects on the B proxies complicating their application. Identifying the carbonate system parameter influencing boron incorporation is difficult due to

APA, Harvard, Vancouver, ISO, and other styles

10

Preiss-Daimler, Inga, Stergios D. Zarkogiannis, George Kontakiotis, Rüdiger Henrich, and Assimina Antonarakou. "Paleoceanographic Perturbations and the Marine Carbonate System during the Middle to Late Miocene Carbonate Crash—A Critical Review." Geosciences 11, no. 2 (2021): 94. http://dx.doi.org/10.3390/geosciences11020094.

Full text

Abstract:

This study intends to review and assess the middle to late Miocene Carbonate Crash (CC) events in the low to mid latitudes of the Pacific, Indian, Caribbean and Atlantic Oceans as part of the global paleoceanographic reorganisations between 12 and 9 Ma with an emphasis on record preservation and their relation to mass accumulation rates (MAR). In the Eastern Pacific the accumulation changes in carbonate and opal probably reflect an El-Niño-like state of low productivity, which marks the beginning of the CC-event (11.5 Ma), followed by decreased preservation and influx of corrosive bottom water

APA, Harvard, Vancouver, ISO, and other styles

11

Strauss, Justin V., and Nicholas J. Tosca. "Mineralogical constraints on Neoproterozoic pCO2 and marine carbonate chemistry." Geology 48, no. 6 (2020): 599–603. http://dx.doi.org/10.1130/g47506.1.

Full text

Abstract:

Abstract Numerous investigators have sought to identify the perturbations to the global carbon cycle that fueled Earth system change during the Neoproterozoic Era. Nevertheless, a lack of constraints on ocean-atmosphere carbon chemistry has precluded efforts to link biology, climate, and the lithosphere. We combined field and petrographic observations with experimental and theoretical geochemistry to show that early Neoproterozoic seawater featured elevated alkalinity in the presence of high atmospheric pCO2, which sustained remarkable marine CaCO3 supersaturation (Ωcalcite). Without pelagic c

APA, Harvard, Vancouver, ISO, and other styles

12

Mitchell, J. K., G. R. Holdgate, M. W. Wallace, and S. J. Gallagher. "Marine geology of the Quaternary Bass Canyon system, southeast Australia: A cool-water carbonate system." Marine Geology 237, no. 1-2 (2007): 71–96. http://dx.doi.org/10.1016/j.margeo.2006.10.037.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Bellerby, R. G. J., A. Silyakova, G. Nondal, et al. "Marine carbonate system evolution during the EPOCA Arctic pelagic ecosystem experiment in the context of simulated Arctic ocean acidification." Biogeosciences Discussions 9, no. 11 (2012): 15541–65. http://dx.doi.org/10.5194/bgd-9-15541-2012.

Full text

Abstract:

Abstract. A major, potential stressor of marine systems is the changing water chemistry following increasing seawater carbon dioxide concentration (CO2), commonly termed ocean acidification. In order to understand how an Arctic pelagic ecosystem may respond to future CO2, a deliberate ocean acidification and nutrient perturbation study was undertaken in an Arctic fjord. The initial setting and evolution of seawater carbonate chemistry were investigated. Additions of carbon dioxide resulted in a wide range of ocean acidification scenarios. This study documents the changes to the CO2 system thro

APA, Harvard, Vancouver, ISO, and other styles

14

Kindeberg, Theodor, Nicholas R. Bates, Travis A. Courtney, et al. "Porewater Carbonate Chemistry Dynamics in a Temperate and a Subtropical Seagrass System." Aquatic Geochemistry 26, no. 4 (2020): 375–99. http://dx.doi.org/10.1007/s10498-020-09378-8.

Full text

Abstract:

Abstract Seagrass systems are integral components of both local and global carbon cycles and can substantially modify seawater biogeochemistry, which has ecological ramifications. However, the influence of seagrass on porewater biogeochemistry has not been fully described, and the exact role of this marine macrophyte and associated microbial communities in the modification of porewater chemistry remains equivocal. In the present study, carbonate chemistry in the water column and porewater was investigated over diel timescales in contrasting, tidally influenced seagrass systems in Southern Cali

APA, Harvard, Vancouver, ISO, and other styles

15

Yan, Jinpei, Qi Lin, Seng Chee Poh, Yuhong Li, and Liyang Zhan. "Underway Measurement of Dissolved Inorganic Carbon (DIC) in Estuarine Waters." Journal of Marine Science and Engineering 8, no. 10 (2020): 765. http://dx.doi.org/10.3390/jmse8100765.

Full text

Abstract:

Dissolved inorganic carbon (DIC) is an important parameter of the marine carbonate system. Underway analyses of DIC are required to describe spatial and temporal changes of DIC in marine systems. In this study, we developed a microvolume flow detection method for the underway determination of DIC in marine waters, using gas-diffusion flow analysis in conjunction with electrical conductivity (EC) measurement. Only an acid carrier reagent (0.2 mol.L−1) and an ultrapure water acceptor are required for the DIC monitoring system. In this system, a sampling loop (100 µL) is used to quantify the inje

APA, Harvard, Vancouver, ISO, and other styles

16

Azzaro, E., A. Bellanca, and R. Neri. "Mineralogy and geochemistry of Mesozoic black shales and interbedded carbonates, southeastern Sicily: evaluation of diagenetic processes." Geological Magazine 130, no. 2 (1993): 191–202. http://dx.doi.org/10.1017/s0016756800009857.

Full text

Abstract:

AbstractUpper Triassic/Lower Jurassic organic-rich shales and interbedded carbonates (Rhaetian → Sinemurian) are widespread in the subsurface of southeastern Sicily where important oil fields have been found hosted in Triassic reservoirs. Core samples from wells drilled offshore and onshore were studied from petrographie and geochemical viewpoints.In the Hettangian/Sinemurian shale-carbonate sequences, which accumulated in a rapidly subsiding basin, the micritic aragonitic mud is still largely preserved. Mixed-layer I/S has remained randomly interstratified to a depth > 4000 m. Diagenetic c

APA, Harvard, Vancouver, ISO, and other styles

17

Nisumaa, A. M., S. Pesant, R. G. J. Bellerby, et al. "EPOCA/EUR-OCEANS data-mining compilation on the impacts of ocean acidification." Earth System Science Data Discussions 3, no. 1 (2010): 109–30. http://dx.doi.org/10.5194/essdd-3-109-2010.

Full text

Abstract:

Abstract. The uptake of anthropogenic CO2 by the oceans has led to a rise in the oceanic partial pressure of CO2, and to a decrease in pH and carbonate ion concentration. This modification of the marine carbonate system is referred to as ocean acidification. Numerous papers report the effects of ocean acidification on marine organisms and communities but few have provided details concerning full carbonate chemistry and complementary observations. Additionally, carbonate system variables are often reported in different units, calculated using different sets of dissociation constants and on diff

APA, Harvard, Vancouver, ISO, and other styles

18

Nisumaa, A. M., S. Pesant, R. G. J. Bellerby, et al. "EPOCA/EUR-OCEANS data compilation on the biological and biogeochemical responses to ocean acidification." Earth System Science Data 2, no. 2 (2010): 167–75. http://dx.doi.org/10.5194/essd-2-167-2010.

Full text

Abstract:

Abstract. The uptake of anthropogenic CO2 by the oceans has led to a rise in the oceanic partial pressure of CO2, and to a decrease in pH and carbonate ion concentration. This modification of the marine carbonate system is referred to as ocean acidification. Numerous papers report the effects of ocean acidification on marine organisms and communities but few have provided details concerning full carbonate chemistry and complementary observations. Additionally, carbonate system variables are often reported in different units, calculated using different sets of dissociation constants and on diff

APA, Harvard, Vancouver, ISO, and other styles

19

Courtinat, Bernard, and Fabrice Malartre. "Palynofacies variations in a carbonate ramp system environment (Upper Muschelkalk, NE France)." Bulletin de la Société Géologique de France 174, no. 6 (2003): 595–601. http://dx.doi.org/10.2113/174.6.595.

Full text

Abstract:

Abstract This study analyses variations in the size of black woody phytoclast and palynofacies types of shallow subtidal environments evolving to deeper subtidal environments, of latest Illyrdian-latest Fassanian age (Upper Muschelkalk). Some of the results display some discrepancies between elevated particle sizes that were supposedly deposited in a relative proximal source and the rich veryhachid palynofacies that are thought to represent distal marine environments. A case study of the succession in the Héming quarry, located in the Alsace-Lorraine trough (southwestern part of the intracrat

APA, Harvard, Vancouver, ISO, and other styles

20

Carter, B. R., J. R. Toggweiler, R. M. Key, and J. L. Sarmiento. "Processes determining the marine alkalinity and calcium carbonate saturation state distributions." Biogeosciences 11, no. 24 (2014): 7349–62. http://dx.doi.org/10.5194/bg-11-7349-2014.

Full text

Abstract:

Abstract. We introduce a composite tracer for the marine system, Alk*, that has a global distribution primarily determined by CaCO3 precipitation and dissolution. Alk* is also affected by riverine alkalinity from dissolved terrestrial carbonate minerals. We estimate that the Arctic receives approximately twice the riverine alkalinity per unit area as the Atlantic, and 8 times that of the other oceans. Riverine inputs broadly elevate Alk* in the Arctic surface and particularly near river mouths. Strong net carbonate precipitation results in low Alk* in subtropical gyres, especially in the India

APA, Harvard, Vancouver, ISO, and other styles

21

Bach, L. T. "Reconsidering the role of carbonate ion concentration in calcification by marine organisms." Biogeosciences 12, no. 16 (2015): 4939–51. http://dx.doi.org/10.5194/bg-12-4939-2015.

Full text

Abstract:

Abstract. Marine organisms precipitate 0.5–2.0 Gt of carbon as calcium carbonate (CaCO3) every year with a profound impact on global biogeochemical element cycles. Biotic calcification relies on calcium ions (Ca2+) and usually on bicarbonate ions (HCO3−) as CaCO3 substrates and can be inhibited by high proton (H+) concentrations. The seawater concentration of carbonate ions (CO32−) and the CO32−-dependent CaCO3 saturation state (ΩCaCO3) seem to be irrelevant in this production process. Nevertheless, calcification rates and the success of calcifying organisms in the oceans often correlate surpr

APA, Harvard, Vancouver, ISO, and other styles

22

Bach, L. T. "Reconsidering the role of carbonate ion concentration in calcification by marine organisms." Biogeosciences Discussions 12, no. 9 (2015): 6689–722. http://dx.doi.org/10.5194/bgd-12-6689-2015.

Full text

Abstract:

Abstract. Marine organisms precipitate 0.5–2.0 Gt of carbon as calcium carbonate (CaCO3) every year with a profound impact on global biogeochemical element cycles. Biotic calcification relies on calcium ions (Ca2+) and generally on bicarbonate ions (HCO3−) as CaCO3 substrates and can be inhibited by high proton (H+) concentrations. The seawater concentration of carbonate ions (CO32−) and the CO32−-dependent CaCO3 saturation state (ΩCaCO3) seem to be irrelevant in this production process. Nevertheless, calcification rates and the success of calcifying organisms in the oceans often correlate sur

APA, Harvard, Vancouver, ISO, and other styles

23

Soetaert, Karline, and Marilaure Gregoire. "Estimating marine biogeochemical rates of the carbonate pH system—A Kalman filter tested." Ecological Modelling 222, no. 12 (2011): 1929–42. http://dx.doi.org/10.1016/j.ecolmodel.2011.03.012.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Koltunov, A. M., P. Ya Tishchenko, V. I. Zvalinskii, R. V. Chichkin, V. B. Lobanov, and D. A. Nekrasov. "The carbonate system of the amur estuary and the adjacent marine aquatic areas." Oceanology 49, no. 5 (2009): 643–54. http://dx.doi.org/10.1134/s0001437009050051.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Fuhrmann, Florian, Klemens Seelos, and Frank Sirocko. "Eolian sedimentation in central European Auel dry maar from 60 to 13 ka." Quaternary Research 101 (May 2021): 4–12. http://dx.doi.org/10.1017/qua.2020.81.

Full text

Abstract:

AbstractThe climate in central Europe during the last 60 ka is characterized by rapid temperature and moisture changes and strong cold periods (Heinrich events). All these variations are preserved in sediments of marine and also some terrestrial archives. Here we present a continuous, terrestrial sediment record with almost all Greenland stadials and Heinrich events between 60 and 13 ka visible from carbonate roundness of the Eifel Laminated Sediment Archive Dust Stack-20 and CaCO3 data for central Europe. The carbonate roundness data show almost all stadials between 60 and 13 ka. CaCO3 data s

APA, Harvard, Vancouver, ISO, and other styles

26

Ridgwell, A., J. C. Hargreaves, N. R. Edwards, et al. "Marine geochemical data assimilation in an efficient Earth System Model of global biogeochemical cycling." Biogeosciences 4, no. 1 (2007): 87–104. http://dx.doi.org/10.5194/bg-4-87-2007.

Full text

Abstract:

Abstract. We have extended the 3-D ocean based "Grid ENabled Integrated Earth system model" (GENIE-1) to help understand the role of ocean biogeochemistry and marine sediments in the long-term (~100 to 100 000 year) regulation of atmospheric CO2, and the importance of feedbacks between CO2 and climate. Here we describe the ocean carbon cycle, which in its first incarnation is based around a simple single nutrient (phosphate) control on biological productivity. The addition of calcium carbonate preservation in deep-sea sediments and its role in regulating atmospheric CO2 is presented elsewhere

APA, Harvard, Vancouver, ISO, and other styles

27

Lucas, Spencer G., William A. DiMichele, Karl Krainer, et al. "The Pennsylvanian System in the Sacramento Mountains, New Mexico, USA." Smithsonian Contributions to Paleobiology, no. 104 (February 22, 2021): iv—215. http://dx.doi.org/10.5479/si.14079809.v1.

Full text

Abstract:

Pennsylvanian sedimentary rocks in the Sacramento Mountains, New Mexico, comprise an ~1 km thick stratigraphic section. The Morrowan-Desmoinesian Gobbler Formation was deposited by shallow marine processes in and near the Alamo clastic trough. In this trough, the Desmoinesian-Missourian Gray Mesa Formation (Bug Scuffle Member, Gobbler Formation) is a relatively thin unit (Space History Member) representing the glacioeustatic Amado event. The Missourian-Virgilian Beeman Formation includes the lower, siliciclastic Indian Wells Canyon Member and overlying, carbonate-rich Horse Ridge Member. The V

APA, Harvard, Vancouver, ISO, and other styles

28

Thomsen, J., K. Haynert, K. M. Wegner, and F. Melzner. "Impact of seawater carbonate chemistry on the calcification of marine bivalves." Biogeosciences 12, no. 14 (2015): 4209–20. http://dx.doi.org/10.5194/bg-12-4209-2015.

Full text

Abstract:

Abstract. Bivalve calcification, particularly of the early larval stages, is highly sensitive to the change in ocean carbonate chemistry resulting from atmospheric CO2 uptake. Earlier studies suggested that declining seawater [CO32−] and thereby lowered carbonate saturation affect shell production. However, disturbances of physiological processes such as acid-base regulation by adverse seawater pCO2 and pH can affect calcification in a secondary fashion. In order to determine the exact carbonate system component by which growth and calcification are affected it is necessary to utilize more com

APA, Harvard, Vancouver, ISO, and other styles

29

Keul, N., G. Langer, L. J. de Nooijer, and J. Bijma. "Effect of ocean acidification on the benthic foraminifera <i>Ammonia</i> sp. is caused by a decrease in carbonate ion concentration." Biogeosciences Discussions 10, no. 1 (2013): 1147–76. http://dx.doi.org/10.5194/bgd-10-1147-2013.

Full text

Abstract:

Abstract. About 30% of the anthropogenically released CO2 is taken up by the oceans, which causes surface ocean pH to decrease and is commonly referred to as Ocean Acidification (OA). Foraminifera are one of the most abundant groups of marine calcifiers, estimated to precipitate ca. 50% of biogenic calcium carbonate in the open oceans. We have compiled the state of the art of OA effects on foraminifera, because the majority of OA research on this group was published within the last 3 yr. Disparate responses of this important group of marine calcifiers to OA were reported, highlighting the impo

APA, Harvard, Vancouver, ISO, and other styles

30

Perretti, Adriana Rodrigues, Ana Cecília Rizzatti de Albergaria-Barbosa, Rodrigo Kerr, and Leticia Cotrim da Cunha. "Ocean acidification studies and the uncertainties relevance on measurements of marine carbonate system properties." Brazilian Journal of Oceanography 66, no. 2 (2018): 234–42. http://dx.doi.org/10.1590/s1679-87592018000706602.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Böhm, F., A. Haase-Schramm, A. Eisenhauer, et al. "Evidence for preindustrial variations in the marine surface water carbonate system from coralline sponges." Geochemistry, Geophysics, Geosystems 3, no. 3 (2002): 1–13. http://dx.doi.org/10.1029/2001gc000264.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Xu, Hengchao, Xiaotong Peng, Shijie Bai, et al. "Precipitation of calcium carbonate mineral induced by viral lysis of cyanobacteria: evidence from laboratory experiments." Biogeosciences 16, no. 4 (2019): 949–60. http://dx.doi.org/10.5194/bg-16-949-2019.

Full text

Abstract:

Abstract. Viruses have been acknowledged as being important components of the marine system for the past 2 decades, but their role in the functioning of the geochemical cycle has not been thoroughly elucidated to date. Virus-induced rupturing of cyanobacteria is theoretically capable of releasing intracellular bicarbonate and inducing the homogeneous nucleation of calcium carbonate; however, experiment-based support for virus-induced calcification is lacking. In this laboratory study, both water carbonate chemistry and precipitates were monitored during the viral infection and lysis of host ce

APA, Harvard, Vancouver, ISO, and other styles

33

Draper, J. "GEORGINA BASIN—AN EARLY PALAEOZOIC CARBONATE PETROLEUM SYSTEM IN QUEENSLAND." APPEA Journal 47, no. 1 (2007): 107. http://dx.doi.org/10.1071/aj06006.

Full text

Abstract:

Queensland contains a number of carbonate-bearing basins which are under-explored for petroleum, but contain the elements of potentially economic petroleum systems. The oldest such basin is the Neoproterozoic to Ordovician Georgina Basin which straddles the Queensland-Northern Territory border and is traversed by the Ballera to Mount Isa gas pipeline.The basin developed across several major crustal blocks resulting in regional variations in deposition and deformation. Thick Neoproterozoic rocks of the Centralian Superbasin form the base of the sequence in apparently fault-bounded, extensional

APA, Harvard, Vancouver, ISO, and other styles

34

Hurd, Catriona L., John Beardall, Steeve Comeau, et al. "Ocean acidification as a multiple driver: how interactions between changing seawater carbonate parameters affect marine life." Marine and Freshwater Research 71, no. 3 (2020): 263. http://dx.doi.org/10.1071/mf19267.

Full text

Abstract:

‘Multiple drivers’ (also termed ‘multiple stressors’) is the term used to describe the cumulative effects of multiple environmental factors on organisms or ecosystems. Here, we consider ocean acidification as a multiple driver because many inorganic carbon parameters are changing simultaneously, including total dissolved inorganic carbon, CO2, HCO3–, CO32–, H+ and CaCO3 saturation state. With the rapid expansion of ocean acidification research has come a greater understanding of the complexity and intricacies of how these simultaneous changes to the seawater carbonate system are affecting mari

APA, Harvard, Vancouver, ISO, and other styles

35

Thomsen, J., K. Haynert, K. M. Wegner, and F. Melzner. "Impact of seawater carbonate chemistry on the calcification of marine bivalves." Biogeosciences Discussions 12, no. 2 (2015): 1543–71. http://dx.doi.org/10.5194/bgd-12-1543-2015.

Full text

Abstract:

Abstract. Bivalve calcification, particular of the early larval stages is highly sensitive to the change of ocean carbonate chemistry resulting from atmospheric CO2 uptake. Earlier studies suggested that declining seawater [CO32−] and thereby lowered carbonate saturation affect shell production. However, disturbances of physiological processes such as acid-base regulation by adverse seawater pCO2 and pH can affect calcification in a secondary fashion. In order to determine the exact carbonate system component by which growth and calcification are affected it is necessary to utilize more comple

APA, Harvard, Vancouver, ISO, and other styles

36

Santos Filho, Marcos Antonio Batista dos, Enelise Katia Piovesan, Gerson Fauth, and Narendra Kumar Srivastava. "Paleoenvironmental interpretation through the analysis of ostracodes and carbonate microfacies: study of the Jandaíra Formation, Upper Cretaceous, Potiguar Basin." Brazilian Journal of Geology 45, no. 1 (2015): 23–34. http://dx.doi.org/10.1590/23174889201500010002.

Full text

Abstract:

Paleoecological analyses are important tools for the reconstruction of paleoenvironments. This paper had the objective of using analysis of ostracode assemblages and carbonate microfacies of a well (Carbomil) and an outcrop (Quixeré) from the Jandaíra Formation, Potiguar Basin, in order to verify how they corroborate and complement the other. Two paleoenvironments for Carbomil Well (assemblages 1 and 2, respectively marine and brackish to neritic environments) and one for Quixeré Outcrop (assemblage 3, marine environment) were identified through the ostracode assemblage analysis. Thin section

APA, Harvard, Vancouver, ISO, and other styles

37

WATERS, C. N., P. CÓZAR, I. D. SOMERVILLE, R. B. HASLAM, D. MILLWARD, and M. WOODS. "Lithostratigraphy and biostratigraphy of the Lower Carboniferous (Mississippian) carbonates of the southern Askrigg Block, North Yorkshire, UK." Geological Magazine 154, no. 2 (2016): 305–33. http://dx.doi.org/10.1017/s0016756815000989.

Full text

Abstract:

AbstractA rationalized lithostratigraphy for the Great Scar Limestone Group of the southeast Askrigg Block is established. The basal Chapel House Limestone Formation, assessed from boreholes, comprises shallow-marine to supratidal carbonates that thin rapidly northwards across the Craven Fault System, onlapping a palaeotopographical high of Lower Palaeozoic strata. The formation is of late Arundian age in the Silverdale Borehole, its northernmost development. The overlying Kilnsey Formation represents a southward-thickening and upward-shoaling carbonate development on a S-facing carbonate ramp

APA, Harvard, Vancouver, ISO, and other styles

38

Reijmer, John J. G., Johan H. ten Veen, Bastiaan Jaarsma, and Roy Boots. "Seismic stratigraphy of Dinantian carbonates in the southern Netherlands and northern Belgium." Netherlands Journal of Geosciences 96, no. 4 (2017): 353–79. http://dx.doi.org/10.1017/njg.2017.33.

Full text

Abstract:

AbstractDue to their potential as a petroleum or geothermal system, the Dinantian carbonates of the Netherlands have recently attracted renewed interest because of the identified presence of excellent reservoir properties. This notion contrasts with the general assumption that these carbonates are tight. Therefore, in order to give the current knowledge state, this paper re-examines the sparse publicly available well and seismic data and literature to assess the distribution and reservoir properties of the Dinantian carbonates.Dinantian carbonate deposition occurred throughout the study area (

APA, Harvard, Vancouver, ISO, and other styles

39

Vincent, Julia, René Sabot, Isabelle Lanneluc, et al. "Biomineralization of calcium carbonate by marine bacterial strains isolated from calcareous deposits." Matériaux & Techniques 108, no. 3 (2020): 302. http://dx.doi.org/10.1051/mattech/2020027.

Full text

Abstract:

Biomineralization induced by microbial enzymes, which catalyse CaCO3 precipitation, is a promising field of research for various applications in building eco-materials. Especially, this could provide an eco-friendly process for protection of coastal areas against erosion. In the present investigation, fourteen bacterial strains were isolated and characterized from both natural seawater and calcareous deposits formed on a cathodically protected steel mesh in marine environment. All of them induced calcium carbonate precipitation in various media by producing urease and/or carbonic anhydrase enz

APA, Harvard, Vancouver, ISO, and other styles

40

Humphreys, Matthew P. "Climate sensitivity and the rate of ocean acidification: future impacts, and implications for experimental design." ICES Journal of Marine Science 74, no. 4 (2016): 934–40. http://dx.doi.org/10.1093/icesjms/fsw189.

Full text

Abstract:

The global mean surface temperature and partial pressure of carbon dioxide (CO2) are increasing both in the atmosphere and ocean. Oceanic CO2 uptake causes a decline in pH called ocean acidification (OA), which also alters other biologically important carbonate system variables such as carbonate mineral saturation states. Here, we discuss how a “temperature buffering” effect chemically links the rates of warming and OA at a more fundamental level than is often appreciated, meaning that seawater warming could mitigate some of the adverse biological impacts of OA. In a global mean sense, the rat

APA, Harvard, Vancouver, ISO, and other styles

41

Jeon, Hyeonmin, Seongwan Kim, and Kyoungkuk Yoon. "Fuel Cell Application for Investigating the Quality of Electricity from Ship Hybrid Power Sources." Journal of Marine Science and Engineering 7, no. 8 (2019): 241. http://dx.doi.org/10.3390/jmse7080241.

Full text

Abstract:

Since recent marine application of fuel cell systems has been due largely limited to small-sized ships, this paper was aimed to investigate the technical applicability of molten carbonate fuel cell (MCFC) for medium and large-sized ships, using a 180 kW class hybrid test bed with combined power sources: A 100 kW MCFC, a 30 kW battery and a 50 kW diesel generator. This study focused primarily on determining whether the combined system designed in consideration of actual marine power system configuration could function properly. A case study was conducted with a 5500 Twenty-foot Equivalent Unit

APA, Harvard, Vancouver, ISO, and other styles

42

Bockmon, E. E., C. A. Frieder, M. O. Navarro, L. A. White-Kershek, and A. G. Dickson. "Controlled experimental aquarium system for multi-stressor investigation: carbonate chemistry, oxygen saturation, and temperature." Biogeosciences Discussions 10, no. 2 (2013): 3431–53. http://dx.doi.org/10.5194/bgd-10-3431-2013.

Full text

Abstract:

Abstract. As the field of ocean acidification has grown, researchers have increasingly turned to laboratory experiments to understand the impacts of increased CO2 on marine organisms. However, other changes such as ocean warming and deoxygenation are occurring concurrently with the increasing CO2 concentrations, complicating the anthropogenic impact on organisms. This experimental aquarium design allows for independent regulation of CO2 concentration, O2 levels, and temperature in a controlled environment to study the impacts of multiple stressors. The system has the flexibility for a wide ran

APA, Harvard, Vancouver, ISO, and other styles

43

Han, Chenhua, Wei-Jun Cai, Yongchen Wang, and Ying Ye. "Calibration and evaluation of a carbonate microsensor for studies of the marine inorganic carbon system." Journal of Oceanography 70, no. 5 (2014): 425–33. http://dx.doi.org/10.1007/s10872-014-0243-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

CHATALOV, ATHANAS. "Global, regional and local controls on the development of a Triassic carbonate ramp system, Western Balkanides, Bulgaria." Geological Magazine 155, no. 3 (2016): 641–73. http://dx.doi.org/10.1017/s0016756816000923.

Full text

Abstract:

AbstractThe Early to Late Triassic development of a carbonate ramp system in the subtropical belt of the NW Tethys was controlled by the interplay of several global and regional factors: geotectonic setting (slow continuous subsidence on a passive continental margin), antecedent topography (low-gradient relief inherited from preceding depositional regime), climate and oceanography (warm and dry climatic conditions, storm influence), relative sea-level changes (Olenekian to Anisian eustatic rise, middle Anisian to early Carnian sea-level fall), lack of frame-builders (favouring the maintenance

APA, Harvard, Vancouver, ISO, and other styles

45

Ridgwell, A., J. C. Hargreaves, N. R. Edwards, et al. "Marine geochemical data assimilation in an efficient Earth System Model of global biogeochemical cycling." Biogeosciences Discussions 3, no. 4 (2006): 1313–54. http://dx.doi.org/10.5194/bgd-3-1313-2006.

Full text

Abstract:

Abstract. We have extended the 3-D ocean based "Grid ENabled Integrated Earth system model'' (GENIE-1) to help understand the role of ocean biogeochemistry and marine sediments in the "long-term'' (~100 to 100 000 year) regulation of atmospheric CO2, and the importance of feedbacks between CO2 and climate. Here we describe the ocean carbon cycle, which is based around a simple single nutrient (phosphate) control on biological productivity. The addition of ocean-sediment interactions is presented elsewhere (Ridgwell and Hargreaves, 2006). We have calibrated the model parameters controlling ocea

APA, Harvard, Vancouver, ISO, and other styles

46

Keul, N., G. Langer, L. J. de Nooijer, and J. Bijma. "Effect of ocean acidification on the benthic foraminifera <i>Ammonia</i> sp. is caused by a decrease in carbonate ion concentration." Biogeosciences 10, no. 10 (2013): 6185–98. http://dx.doi.org/10.5194/bg-10-6185-2013.

Full text

Abstract:

Abstract. About 30% of the anthropogenically released CO2 is taken up by the oceans; such uptake causes surface ocean pH to decrease and is commonly referred to as ocean acidification (OA). Foraminifera are one of the most abundant groups of marine calcifiers, estimated to precipitate ca. 50 % of biogenic calcium carbonate in the open oceans. We have compiled the state of the art literature on OA effects on foraminifera, because the majority of OA research on this group was published within the last three years. Disparate responses of this important group of marine calcifiers to OA were report

APA, Harvard, Vancouver, ISO, and other styles

47

Lavoie, Denis, and Guoxiang Chi. "An Ordovician “Lost City” — venting serpentinite and life oases on Iapetus seafloor." Canadian Journal of Earth Sciences 47, no. 3 (2010): 199–207. http://dx.doi.org/10.1139/e10-013.

Full text

Abstract:

Highly brecciated carbonate-rich serpentinites (or ophicalcites) of Early Ordovician age in the Dunnage Zone of Quebec are host to fracture-fill, high-temperature (80–230 °C) carbonate cements. Away from, or crosscut by the fractures, centimetre- to decimetre-thick crusts made up of massive to laminated micrite, peloidal layers and threads are associated with low-temperature botryoidal calcite cements. The peloidal masses are characterized by a clotted texture that is reminiscent of interpreted fossilized Ordovician microbial communities. The ophicalcite contains carbonate botryoids, morpholog

APA, Harvard, Vancouver, ISO, and other styles

48

George, Bivin G., Jyotiranjan S. Ray, and Sanjeev Kumar. "Geochemistry of carbonate formations of the Chhattisgarh Supergroup, central India: implications for Mesoproterozoic global events." Canadian Journal of Earth Sciences 56, no. 3 (2019): 335–46. http://dx.doi.org/10.1139/cjes-2018-0144.

Full text

Abstract:

The Chhattisgarh Supergroup is one of the major Proterozoic marine sedimentary sequences of India. It consists of largely undeformed and unmetamorphosed siliciclastic, volcaniclastic, and carbonate formations deposited in two sub-basins, Hirri and Bharadwar, separated by an Archean greenstone belt. In spite of its apparent importance for Mesoproterozoic oceanic records, very few geochemical studies have been carried in the basin. Here, we present results of our high resolution geochemical and C–O–Sr isotopic studies in two carbonate formations of the supergroup: the Charmuria and the Chandi. W

APA, Harvard, Vancouver, ISO, and other styles

49

Troup, Alison, and Behnam Talebi. "Adavale Basin petroleum plays." APPEA Journal 59, no. 2 (2019): 958. http://dx.doi.org/10.1071/aj18083.

Full text

Abstract:

The Devonian Adavale Basin system is an under-explored, frontier petroleum basin in south-west Queensland. It has a confirmed petroleum system with production from the Gilmore gas field. The age, marine depositional environments and high carbonate content suggest the basin may have unconventional petroleum potential, and there has been renewed interest from industry in evaluating the basin. In support of this, the Queensland Department of Natural Resources, Mines and Energy has examined the source rock properties of the Bury Limestone and Log Creek Formation and has commissioned an update to t

APA, Harvard, Vancouver, ISO, and other styles

50

De Falco, Giovanni, Emanuela Molinaroli, Alessandro Conforti, Simone Simeone, and Renato Tonielli. "Biogenic sediments from coastal ecosystems to beach–dune systems: implications for the adaptation of mixed and carbonate beaches to future sea level rise." Biogeosciences 14, no. 13 (2017): 3191–205. http://dx.doi.org/10.5194/bg-14-3191-2017.

Full text

Abstract:

Abstract. Coastal ecosystems produce and store carbonate particles, which play a significant role in the carbonate dynamics of coastal areas and may contribute to the sediment budget of adjacent beaches. In the nearshore seabed of temperate zones (e.g. Mediterranean Sea and South Australia), marine biogenic carbonates are mainly produced inside seagrass meadows. This study quantifies the contribution of biogenic sediments, mainly produced in Posidonia oceanica seagrass meadows and secondarily in photophilic algal communities, to the sediment budget of a Mediterranean beach–dune system (San Gio

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!