Results 21 to 30 of about 38,380 (249)

Thermodynamic characteristics of CH4 adsorption by continental shale: A case study of the Upper Triassic Yanchang shale in the Yanchang Gasfield, Ordos Basin

open access: yesNatural Gas Industry B, 2020
In order to improve the calculation method of the isosteric adsorption heat, clarify thermodynamic characteristics of CH4 adsorption by continental shale and reveal the adsorption mechanism, this paper selected shale samples from the seventh Member of ...
Pei Xue   +5 more
doaj   +1 more source

New Geochronological Age Constraint and Chemostratigraphy for Aptian Lacustrine Strata, Cedar Mountain Formation, Utah

open access: yesGeochemistry, Geophysics, Geosystems, 2023
The Early Cretaceous is an important time of transition in Earth history, marked by a succession of oceanic anoxic events and carbon cycle perturbations that drove changes on land and in the ocean.
Marina B. Suarez   +8 more
doaj   +1 more source

A New Species of Large Duck (Aves: Anatidae) from the Miocene of New Zealand

open access: yesTaxonomy, 2022
We describe a new species of extinct duck, Miotadorna catrionae sp. nov. (Anatidae, Tadornini, Tadorninae), based on a right humerus from the Miocene lacustrine deposits of St Bathans, Otago, New Zealand. Principal component analysis reveals that the new
Alan J. D. Tennyson   +6 more
doaj   +1 more source

Lacustrine Thaumarchaeota Genome Sequence

open access: yes, 2022
Genome (nucleotide) sequences of lacustrine Thaumarchaea compiled (and reconstructed) in the study.
David Ngugi (11451727)
core   +1 more source

Bigadiç havzası (Balıkesir-Türkiye) Erken Miyosen göl çökellerinde sin-sedimanter deformasyon yapıları, taban kireçtaşı birimi

open access: yesBulletin of the Mineral Research and Exploration, 2018
Batı Anadolu bölgesinde geç Oligosen – erken Miyosen’de başlayan genişleme ile ilişkili faylarla sınırlı KD-GB, D-B doğrultulu havzalar gelişmiştir. Bu havzaların dolgularını volkanik ve volkanoklastik ara seviyeli akarsu – göl çökelleri oluşturur.
Calibe KOÇ TAŞGIN   +2 more
doaj   +1 more source

Investigating Algal Communities in Lacustrine and Hydro-Terrestrial Environments of East Antarctica Using Deep Amplicon Sequencing

open access: yesMicroorganisms, 2020
Antarctica has one of the most extreme environments on Earth, with low temperatures and low nutrient levels. Antarctica’s organisms live primarily in the coastal, ice-free areas which cover approximately 0.18% of the continent’s surface.
Yuu Hirose   +6 more
doaj   +1 more source

The Lithofacies Association of Brown Shales In Kiliran Jao Subbasin, West Sumatra Indonesia

open access: yesIndonesian Journal on Geoscience, 2015
DOI:10.17014/ijog.2.2.77-90The lithofacies association, mainly lithology and depositional sequences of the Brown Shale Unit of Pematang Group was studied based on recent fieldwork at Karbindo Coal Mine, in Kiliran Jao Subbasin,West Sumatra, Indonesia ...
Edy Sunardi
doaj   +1 more source

Origin of Dolomite in Lacustrine Organic-Rich Shale: A Case Study in the Shahejie Formation of the Dongying Sag, Bohai Bay Basin

open access: yesFrontiers in Earth Science, 2022
In most organic-rich shale reservoirs, dolomite is widely distributed and has different types and crystal sizes. However, the characteristics and formation mechanism of the dolomites in organic-rich shale are still poorly understood.
Ziru Zhao   +22 more
doaj   +1 more source

Evidence for the unique function of DHA during the evolution of the modern hominid brain

open access: yesOléagineux, Corps gras, Lipides, 2004
The African savanna ecosystem of the large mammals and primates was associated with a dramatic decline in relative brain capacity. This reduction happened to be associated with a decline in docosahexaenoic acid (DHA) from the food chain.
Crawford M.A.   +9 more
doaj   +1 more source

Lithium Storage and Release From Lacustrine Sediments: Implications for Lithium Enrichment and Sustainability in Continental Brines

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Despite current and projected future reliance on lithium (Li) as a resource, deficiencies remain in genesis models of closed‐basin Li brines. Subsurface geochemical interactions between water and bulk solid phases from lacustrine sediments, are shown ...
D. M. Coffey   +5 more
doaj   +1 more source

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