Results 21 to 30 of about 27,244 (313)
Evidence for the unique function of DHA during the evolution of the modern hominid brain
Oléagineux, 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
, 2020 Two episodes of lacustrine sedimentation, separated by an erosional surface and fluvial sedimentation, took place in the southern part of the broken foreland Vinchina basin (NW Argentina) between 11 and 5 Ma.
Schencman, Laura Jazmín +7 more
core +1 more source
Geochemistry, 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
Elucidating the crystal-chemistry of Jbel Rhassoul stevensite (Morocco) by advanced analytical techniques [PDF]
, 2008 The composition of Rhassoul clay is controversial regarding the nature of the puremineral clay fraction which is claimed to be stevensite rather than saponite.
B. Rhouta +22 more
core +1 more source
Recovery of lacustrine ecosystems after the end-Permian mass extinction [PDF]
, 2020 The end-Permian mass extinction (EPME; ca. 252 Ma) led to profound changes in lacustrine ecosystems. However, whether or not post-extinction recovery of lacustrine ecosystems was delayed has remained uncertain, due to the apparent rarity of Early and ...
Yuan, X +13 more
core +1 more source
Petroleum Exploration and Development, 2022 As the main factors affecting stable and high production and the production regularity of lacustrine shale oil are unclear, the theoretical understandings, key exploration and development technologies, development effect and production regularity of ...
Xianzheng ZHAO +12 more
doaj +1 more source
The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces
Geophysical Monograph Series, Page 229-246., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson +2 more
wiley +7 more sources
Frontiers in Earth ScienceThe Paleogene-Neogene strata in the Western Depression of the Qaidam Basin represent a primary focus for oil and gas exploration and development. Influenced by both terrigenous clastic influx and endogenic carbonate deposition, these strata exhibit ...
Guoyong Liu +11 more
doaj +1 more source
Energies, 2020 Shale oil is hosted in nanopores of organic-rich shales, so pore characteristics are significant for shale oil accumulation. Here we analyzed pore characteristics of 39 lacustrine shale samples of the Late Cretaceous Qingshankou Formation (K2qn) in the ...
Xiaomeng Cao +6 more
doaj +1 more source