Results 121 to 130 of about 703,808 (249)
An Anticipation Experiment for Plate Tectonics
, 2019 International audienceAlthough plate tectonics has pushed the frontiers of geosciences in the past 50 years, it has legitimate limitations, and among them we focus on both the absence of dynamics in the theory and the difficulty of reconstructing ...
Christian Wolf +5 more
core +1 more source
Integrative Zoology, EarlyView.This study reports two isolated feather fossils from the Lower Cretaceous Dabeigou Formation in northeastern China. Morphological analyses identified them as the earliest known feathered theropods (potentially including avian) in the Jehol Biota. This finding reveals a complex ecosystem at the dawn of the Jehol Biota, bridging the temporal and faunal ...
Qian Wu +2 more
wiley +1 more source
A CO2 greenhouse efficiently warmed the early Earth and decreased seawater 18O/16O before the onset of plate tectonics. [PDF]
Proc Natl Acad Sci U S A, 2021 Herwartz D, Pack A, Nagel TJ.
europepmc +1 more source
Why plate and microplate tectonics?
Plate tectonics is the mechanism determining the motion of the lithosphere fragments (plates) with respect to each other and their movement relative to the underlying mantle.
Carlo Doglioni +2 more
core
Plate Tectonics: a Deep Time & Planetary Perspective
, 2011 Earth is the only planet in the solar system on which plate tectonics occurs today. When did plate tectonics start on Earth and how long has it been in operation? Why do the the other terrestrial planets have single-plates and stagnant lids?
Weber, John
core
Why does plate tectonics only occur on Earth?
, 2008 Plate tectonics governs the topography and motions of the surface of Earth, and the loss of heat from Earth’s interior, but appears to be found uniquely on Earth in the Solar System. Why does plate tectonics occur only on Earth?
Martin, P. +3 more
core +1 more source
“Green Developmentalism” and the Role of International Law in Negotiating the Energy Transition
Global Policy, EarlyView.ABSTRACT Policy evolutions in North American and European capitals have prompted debates about ongoing shifts in global economic governance from a primary emphasis on promoting markets to a more extensive role for the state in steering economic relations.
Lorenzo Cotula
wiley +1 more source
Fault slip-rate variations during crustal-scale strain localisation, central Italy [PDF]
, 2002 Rates of plate motion are generally uniform over 10–102 Myrs timescales. Faults between tectonic plates might, therefore, be expected to show temporally-uniform slip-rates if the same number of faults remain active. For an extending region of the Eurasia-
Morewood, NC +4 more
core
Archaeometry, EarlyView.ABSTRACT This study shows an innovative approach to determine the origin of some Calabrian rocks quarried used in ancient times. Twenty‐five quarries, distributed in all the Calabrian provinces (Southern Italy), were studied and sampled. Ten samples were taken from each quarry, for a total of 250 samples.
Domenico Miriello +5 more
wiley +1 more source
Dispersal, source and glass chemistry of a third tephra unit within Iceland's Settlement Layer
Boreas, EarlyView.Tephra layers may be studied to understand the dynamics and sequence of past explosive volcanism. In Iceland, the distinctive Settlement Layer (AD ~877) underlies almost all archaeological evidence for the Norse Settlement and is preserved in soils across Iceland and as cryptotephra overseas.
Conner A. G. Morison +3 more
wiley +1 more source