Results 111 to 120 of about 76,431 (339)

Coupled authigenic Mg silicate and carbonate precipitation in saline lakes of the Salar de Atacama, Northern Chile

open access: yesThe Depositional Record, EarlyView.
Sediments, unlithified and lithified microbial mats in the Salar de Atacama, are formed by similar pathways involving coupled precipitation of authigenic Mg silicate and calcium carbonate. Differences in products reflect differences in the initial distribution of organic biomass.
Erica P. Suosaari   +7 more
wiley   +1 more source

Sedimentary and Tectonic, Implications on Late Cretaceous Reservoir Succession Along the Oil Fields, Mosul Block, Northwestern Iraq

open access: yesIraqi Geological Journal
This study focuses on Cretaceous reservoir succession development and evaluated in the Mosul Block NW Iraq. The oil fields are Sufayia, Ain Zalah, and Tel-Hajer (Sufayia-1, Ain Zalah-29, producing fields and Exploration well Tel-Hajar-1 South of
Aboosh Al-Hadidy   +2 more
doaj   +1 more source

Erratum to: Sedimentary Basins of the East Siberian Sea and the Chukchi Sea and the Adjacent Area of the Amerasia Basin: Seismic Stratigraphy and Stages of Geological History [PDF]

open access: hybrid, 2020
A. M. Nikishin   +9 more
openalex   +1 more source

Trans-Atlantic dinoflagellate cyst stratigraphy across the Cenomanian–Turonian (Cretaceous) Stage boundary [PDF]

open access: yesJournal of Micropalaeontology, 2000
Abstract. The principal palynological proxy for the Cenomanian–Turonian Stage boundary, the top of consistent/common Litosphaeridium siphoniphorum (a dinoflagellate cyst), occurs in Greenhorn Bed 73 at the international stratotype section, west of Pueblo, Colorado, USA.
openaire   +2 more sources

Organoclay interaction response to sedimentary environment and sources in Paleogene shales from the Nanpu Sag: Insights for organic matter accumulation mechanism

open access: yesThe Depositional Record, EarlyView.
The deep paleo‐lake, characterised by low energy and moderate salinity, facilitated the input of fine‐grained minerals and the development of aquatic organic matter. Under the combined influence of the sedimentary environment and material source, mineral‐bound organic matter was formed, which played a crucial role in the enrichment of organic matter ...
Rusi Zuo   +6 more
wiley   +1 more source

Reconstruction of the Cenozoic Deformation of the Yinggehai Basin and Beibu Gulf Basin, South China Sea

open access: yesJournal of Marine Science and Engineering
This study employs structural information and stratigraphic lithology as constraints to conduct balanced restoration on seismic profiles from the Yinggehai Basin (YGB) and the Beibu Gulf Basin (BGB).
Jiaxiao Zhao   +3 more
doaj   +1 more source

Hydrologic Evolution of a Carbonate Aquifer (Dinaric Karst, Croatia)

open access: yesGeologia Croatica, 2010
Dinaric Karst terrains contain specific, lam inatedspeleothems, which line all surfaces of subterraneanvoids including Cretaceous bedrock limestone, and oldervadose speleothems and clastic sediments.
Ljubomir Babić   +2 more
doaj   +1 more source

Stop 2 Kainui silt loam and Naike clay, Gordonton Rd [PDF]

open access: yes, 2008
At this stop are several remarkable features both stratigraphic and pedological, and a “two-storied” soil, the Kainui silt loam alongside (in just a few places) the Naike clay. Both soils are Ultisols. The sequence of tephra beds and buried soil horizons
Lowe, David J.
core   +1 more source

Emplacement of the Rocche Rosse rhyolite lava flow (Lipari, Aeolian Islands) [PDF]

open access: yes, 2018
The authors acknowledge Airbus Defence and Space for providing satellite imagery, financial support from Keele University and fieldwork grants from the Mineralogical Society of Great Britain and Ireland and the Volcanic and Magmatic Studies Group.
Bullock, Liam A   +2 more
core   +2 more sources

Microbial mediation and climatic control on dolomite precipitation in a hypersaline lake: Insights from Salinas Lake, southern Iberia

open access: yesThe Depositional Record, EarlyView.
The cyclical nature of aridity and humidity led to the alternating deposition of dolomite‐rich and calcite‐rich sediments. During arid phases, the lake hydrology and growth of microbial mats under evaporative and hypersaline environment favors the precipitation of dolomite.
Guolai Li   +6 more
wiley   +1 more source

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