Zobrazeno 1 - 10
of 8 148
pro vyhledávání: '"Authigenic"'
Publikováno v:
Journal of Natural Gas Geoscience, Vol 9, Iss 5, Pp 361-371 (2024)
Methane seeps, prevalent in ocean basins globally, indicate upward methane migration from the subsurface, often evident as gas chimneys in seismic reflection data. The footprint of this methane migration is often indicated by methane-derived authigen
Externí odkaz:
https://doaj.org/article/c9160c1c2a714c88b26ad97141d56364
Autor:
N. V. Yurkevich, A. Sh. Shavekina, O. L. Gaskova, V. S. Artamonova, S. B. Bortnikova, S. S. Volynkin
Publikováno v:
Georesursy, Vol 26, Iss 1, Pp 38-51 (2024)
On the example of the Novo-Ursk tailing dump (Salair Ridge), the typomorphic characteristics of barite are considered. It was found that in the dumps, in addition to residual barite from pyrite-polymetallic ores, there are its authigenic varieties. O
Externí odkaz:
https://doaj.org/article/9c7be0d6dbea4153bdd3a49ce0bdcf65
Autor:
S. P. K. Pillutla, A. Peketi, A. Mazumdar, Mohd. Sadique, K. Sivan, Anjali Zatale, S. Mishra, Swati Verma
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 25, Iss 10, Pp n/a-n/a (2024)
Abstract Active and relic marine methane‐seep sites are widely distributed globally and are distinguished by distinctive geology, biogeochemistry, and ecosystems. The discovery of methane‐seep sites in the Krishna‐Godavari (K‐G) basin has cre
Externí odkaz:
https://doaj.org/article/fda2f36d343d40c4b60e143bc747c3e9
Publikováno v:
Frontiers in Marine Science, Vol 11 (2024)
In low-temperature ocean environments, basalt alteration by seawater precipitates authigenic clay minerals that serve as proxies for reconstructing paleo-ocean conditions because they reflect surrounding oxic-suboxic conditions. In this study, altera
Externí odkaz:
https://doaj.org/article/8f57234d72cf477b81933c386d37d1c9
Autor:
Kishan Aherwar, Michal Šujan, Alessandro Amorosi, Bruno Campo, Andrej Chyba, Adam Tomašových, Barbara Rózsová, Aster Team, Régis Braucher
Publikováno v:
Quaternary Science Advances, Vol 15, Iss , Pp 100201- (2024)
The authigenic 10Be/9Be dating method presents a valuable tool for reconstructing depositional chronologies in sedimentary environments, requiring only ubiquitous mud for sampling. Nevertheless, studies elucidating the variability of the 10Be/9Be rec
Externí odkaz:
https://doaj.org/article/5efed207c2e14e25b585fc81c76ecd3e
Publikováno v:
Frontiers in Marine Science, Vol 11 (2024)
Two accretionary sediment sequences from Sites 1245 and 1252 recovered during Ocean Drilling Program (ODP) Leg 204 at southern Hydrate Ridge were investigated to explore the response of geochemical partitioning of iron and sulfur isotopic composition
Externí odkaz:
https://doaj.org/article/06957fb2640f487bac9e5b524c135770
Publikováno v:
Petroleum Exploration and Development, Vol 51, Iss 1, Pp 97-113 (2024)
Thin section and argon-ion polishing scanning electron microscope observations were used to analyze the sedimentary and diagenetic environments and main diagenesis of the Permian Fengcheng Formation shales in different depositional zones of Mahu Sag
Externí odkaz:
https://doaj.org/article/bf4917ea571e493f9793e8e9df5713df
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
Gas hydrates deposits in the Andaman forearc basin are inferred from seismic data and confirmed by drilling/coring during the NGHP-01 expedition. We present new evidence of gas flares in the Andaman forearc basin, detected through water column image
Externí odkaz:
https://doaj.org/article/6dbd5f40d37340ac85cf52f016e168cb
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 25, Iss 3, Pp n/a-n/a (2024)
Abstract Stable carbon isotope ratios (δ13C values) of marine carbonates are widely used to infer the relative burial rates of organic carbon, a source of oxygen to the ocean‐atmosphere system. This inference, however, is based on the assumption t
Externí odkaz:
https://doaj.org/article/e198ee63f1774b84939d6602ff7f06e5
Autor:
A.V. Mozherovsky
Publikováno v:
Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, Vol 59, Iss 3, Pp 104-118 (2023)
Authigenic minerals in Phanerozoic volcanogenic-sedimentary deposits in the northern part of the transition zone from the Asian continent to the Pacific Ocean have been studied. Сhlorite, mica, corrensite, rectorite, defective chlorite, kaolinite, s
Externí odkaz:
https://doaj.org/article/ad4f3ade373347059ce75705266cccf7