Results 11 to 20 of about 12,654 (223)

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 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.
Jessica H. Whiteside   +3 more
wiley  

+2 more sources

Environmental Context of Hominin Foot Evolution. [PDF]

open access: yesAm J Biol Anthropol
ABSTRACT Objectives This study investigates the environmental contexts that influenced the evolution of hominin foot morphology, focusing on when, where, and under what conditions key synapomorphies evolved. We test whether shifts in ecological conditions are associated with changes in locomotor function.
Sekhavati Y, Prang TC, Strait D.
europepmc   +2 more sources

Nanosized Authigenic Magnetite and Hematite Particles in Mature‐Paleosol Phyllosilicates: New Evidence for a Magnetic Enhancement Mechanism in Loess Sequences of China

open access: yesJournal of Geophysical Research - Solid Earth, 2020
Magnetic enhancement of Chinese loess‐paleosol sequences has been used extensively as a proxy for East Asian summer monsoon variations. However, the pedogenic magnetic particles contributing to this magnetic enhancement are difficult to extract, so it is
M. Hyodo   +8 more
semanticscholar   +1 more source

Understanding the characteristics of loess strata and quaternary climate changes in Luochuan, Shaanxi Province, China, through core analysis

open access: yesOpen Geosciences, 2023
Profile sampling, which causes missing or overlapping horizons, has been generally used while studying loess stratigraphy and paleoclimate. Conversely, drill sampling of thick loess can provide a relatively complete and actual record of the Quaternary ...
Guo Jiao   +4 more
doaj   +1 more source

Soils and terrestrial sediments on the seafloor: Refining archaeological paleoshoreline estimates and paleoenvironmental reconstruction off the California coast

open access: yesFrontiers in Earth Science, 2022
On global, regional, and local scales, sea level histories and paleoshoreline reconstructions are critical to understanding the deep history of human adaptations in island and coastal settings.
Amy E. Gusick   +10 more
doaj   +1 more source

Multiproxy paleosol evidence for a rain shadow effect linked to Miocene uplift of the North Patagonian Andes

open access: yes, 2020
Climate changes related to orographic barrier uplift have been in the research spotlight over recent years. Several works have focused on the interactions between climatic and tectonic processes in order to understand the development of a rain shadow ...
J. Bucher   +6 more
semanticscholar   +1 more source

Main features of the paleosol underlying hydromorphic paleosol.

open access: yes, 2021
The paleosol underlying hydromorphic-paleosol was exposed by the quarrying at the local-depression. The presence of the fossilized roots, stems, blocky peds, and pseudo-anticlines as well as its stratigraphic position (underlying light-gray hydromorphic ...
Khudadad (11372207)
core   +1 more source

Examining Local Climate Variability in the Late Pennsylvanian Through Paleosols: An Example from the Lower Conemaugh Group of Southeastern Ohio, USA

open access: yesGeosciences, 2012
Three temporally close stratigraphic sections were excavated in Glenshaw Formation of Athens County, Ohio. The described units are Upper Pennsylvanian (Gzhelian, 305–302 Ma) and located in the distal portion of the Appalachian foreland basin.
Daniel I. Hembree, Nicole D. Dzenowski
doaj   +1 more source

Berriasian–Valanginian Geochronology and Carbon-Isotope Stratigraphy of the Yellow Cat Member, Cedar Mountain Formation, Eastern Utah, USA

open access: yesGeosciences, 2023
The Early Cretaceous Yellow Cat Member of the terrestrial Cedar Mountain Formation in Utah, USA. has been interpreted as a “time-rich” unit because of its dinosaur fossils, prominent paleosols, and the results of preliminary chemostratigraphic and ...
Robert M. Joeckel   +9 more
doaj   +1 more source

Loess Strata Distribution Characteristics and Paleoclimate Spatial Pattern during the Last Interglacial in the Luohe River Basin

open access: yesGeosciences, 2023
Paleoclimate studies of loess in China have focused mostly on the time series of a single borehole or profile. However, research on loess strata and regional paleoenvironmental patterns could facilitate a deeper understanding of loess as a ...
Jiao Guo   +5 more
doaj   +1 more source

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