Results 71 to 80 of about 8,670 (237)
Power, competition, and the nature of history [PDF]
, 2019 Historians have debated whether pathways and events from the past to the present are influenced largely by contingency, the dependence of outcomes on particular prior conditions, or whether there is long-term emergent directional change.
Vermeij, Geerat J
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Crustal structure between the Knipovich Ridge and the Van Mijenfjorden (Svalbard) [PDF]
, 2002 The Alfred Wegener Institute of Polar and Marine Research, the University of Bergenand the Hokkaido University acquired new seismic refraction data along a transect fromthe Knipovich Ridge to the inner Van Mijenfjorden in southern Svalbard.
Jokat, Wilfried +3 more
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Carbonate sedimentology: An evolved discipline
The Depositional Record, Volume 12, Issue 1, February 2026.Abstract Although admired and examined since antiquity, carbonate sediment and rock research really began with Charles Darwin who, during a discovery phase, studied, documented and interpreted their nature in the mid‐19th century. The modern discipline, however, really began after World War II and evolved in two distinct phases.
Noel P. James, Peir K. Pufahl
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The impact of fire on the Late Paleozoic Earth system [PDF]
, 2015 Analyses of bulk petrographic data indicate that during the Late Paleozoic wildfires were more prevalent than at present. We propose that the development of fire systems through this interval was controlled predominantly by the elevated atmospheric ...
Andrew C Scott +5 more
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Resource Geology, Volume 76, Issue 1, January‐December 2026.Zircon U–Pb dating constrains the Pilok Sn–W granite emplacement at 212–208 Ma, during the Late Triassic post‐collisional extension after the Sibumasu‐Indochina collision. This timing coincides with widespread tin‐bearing granite magmatism throughout Southeast Asia, marking a major regional metallogenic event. ABSTRACT The Pilok Sn–W deposit in western
Mallika Intachai +8 more
wiley +1 more source
PLoS ONE, 2016 Famennian tabulate corals were very rare worldwide, and their biodiversity was relatively low. Here we report a unique tabulate fauna from the mid- and late Famennian of the western part of the Holy Cross Mountains (Kowala and Ostrówka), Poland.
Mikołaj K Zapalski +2 more
doaj +1 more source
Phanerozoic paleoenvironmental and paleoclimatic evolution in Svalbard [PDF]
Climate of the PastSedimentary rocks can provide information about the Earth paleoenvironment and are studied extensively to understand the causes and consequences of global climate changes in deep time.
A. Smyrak-Sikora +31 more
doaj +1 more source
Mineral reconnaissance at the Highland boundary with special reference to the Loch Lomond and Aberfoyle areas [PDF]
, 1983 Serpentinite bodies at the Highland Boundary in the Loch Lomond and Aberfoyle areas are extensively altered to magnesite-quartz and ferroan-dolomite-quartz rocks. Silicification was probably initiated before conversion to carbonate.
Fortey, N.J. +3 more
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Spermatophyta Molecular Clock: Time Drift and Recent Acceleration
Plant-Environment Interactions, Volume 6, Issue 5, October 2025.Exponential increase in the base substitution rate in recent geologic time. ABSTRACT Angiospermae radiation is widely recognized as a mid‐Cretaceous event, but the adaptive radiation of Asarum and Viola as spring ephemerals also occurred during the Quaternary. To better understand the evolution of Angiospermae through geological time, a robust and well‐
Soichi Osozawa
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AGU Advances, Volume 6, Issue 5, October 2025.Abstract Mid‐ to higher‐latitude shallow marine environments are suggested to serve as refugia for organisms during intervals of rapid environmental change associated with hyperthermals. To understand the role of these environments during hyperthermals, we herein investigate the Permian–Triassic environmental crisis, which led to the most severe mass ...
S. Z. Buchwald +18 more
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