Results 11 to 20 of about 10,610 (254)

The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces

open access: yesGeophysical 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  

+9 more sources

Peneplains and tectonics in North-East Greenland after opening of the North-East Atlantic

open access: yesGEUS Bulletin, 2021
Elevated plateaus with deeply incised valleys characterise elevated, passive continental margins (EPCMs) in all climate zones. These features are, however, a topic of debate regarding when and how the large-scale landscapes formed.
Johan M. Bonow, Peter Japsen
doaj   +1 more source

Geochemistry, petrogenesis, and tectonic setting of volcanic rocks in the SW of Torud (Shahrood) [PDF]

open access: yesپترولوژی, 2023
The study area is located in the south of Damghan, 160 km south of Shahrood, and 17 to 30 km south of Torud village. The area geologically, lies in the Cenozoic magmatic belt, a part of the Alpine-Himalayan belt, in the north of the structural zone of ...
Negar Gavanji   +3 more
doaj   +1 more source

Erosional and Tectonic Evolution of a Retroarc Orogenic Wedge as Revealed by Sedimentary Provenance: Case of the Oligocene – Miocene Patagonian Andes

open access: yesFrontiers in Earth Science, 2020
Sedimentary provenance techniques have been widely applied in foreland basin settings to understand tectonic and magmatic processes by tracking the exposure and erosion of distinct sediment source areas through time.
Joel S. Leonard   +3 more
doaj   +1 more source

Variable Phase Relationship Between Monsoon and Temperature in East Asia During Termination II Revealed by Oxygen and Clumped Isotopes of a Northern Chinese Stalagmite

open access: yesGeophysical Research Letters, 2022
Termination II (T‐II) is a natural reference for evaluating the potential effect of substantial ice sheets melting on monsoon and temperature changes caused by global warming.
Wuhui Duan   +5 more
doaj   +1 more source

The Holocene temperature conundrum answered by mollusk records from East Asia

open access: yesNature Communications, 2022
Scientists have been puzzled by the disparity between climate simulations of the past 12,000 years and geological records. Dong et al. reconstructed past annual and seasonal temperatures from land snail records to examine the potential seasonal bias.
Yajie Dong   +6 more
doaj   +1 more source

THE KULTUK VOLCANO: SPATIAL-TEMPORAL CHANGE OF MAGMATIC SOURCES AT THE WESTERN TERMINUS OF THE SOUTH BAIKAL BASIN BETWEEN 18 AND 12 MA

open access: yesГеодинамика и тектонофизика, 2015
The Kultuk volcano erupted at the axial South Baikal basin of the Baikal rift zone (BRZ). Now it exhibits facies of subvolcanic bodies, land-lava eruptions and subaqueous pillow lavas and hyaloclastites.
S. V. Rasskazov   +4 more
doaj   +1 more source

A review of amber and copal occurrences in Africa and their paleontological significance

open access: yesBSGF - Earth Sciences Bulletin, 2020
The paleontological interest for fossil plant resins (amber and copal) has greatly increased in the last decades, as field studies have resulted in the discovery of various new deposits worldwide.
Bouju Valentine, Perrichot Vincent
doaj   +1 more source

Petrochemical Characteristics of Cenozoic Basalts in Datong, Shanxi

open access: yesTaiyuan Ligong Daxue xuebao, 2021
Basalt in the Cenozoic period in Datong, Shanxi can be divided into two types: alkaline basalt in the northwest and tholeiite basalt in the southeast. Petrological and geochemical analyses were carried out on the basalts in Datong area. As known from the
Xiaoqin LI   +4 more
doaj   +1 more source

The latest geodynamics in Central Asia: primary and secondary mantle melting anomalies in the context of orogenesis, rifting, and lithospheric plate motions and interactions

open access: yesГеодинамика и тектонофизика, 2017
A comprehensive model for deep dynamics in Asia has been developed from the data on the evolution of melting anomalies in the context of lithospheric plate motions, interactions, orogeny, and rifting.
I. S. Chuvashova   +2 more
doaj   +1 more source

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