Results 241 to 250 of about 776,982 (368)

Lower‐Crustal Earthquakes: Strain Rate Controls the Magnitude and Rate of Stress Amplification in Rigid Blocks

open access: yesGeophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract Earthquakes in the dry lower continental crust are enigmatic, as they require very high deviatoric stresses. Field observations suggest that stress amplification in rigid blocks surrounded by ductile shear zones leads to seismic failure: the jostling block model.
Sascha Zertani   +2 more
wiley   +1 more source

Extensional crustal tectonics and crust-mantle coupling, a view from the geological record

open access: hybrid, 2018
Laurent Jolivet   +9 more
openalex   +1 more source

Optimized J2 Recovery for Multi‐Decadal Geophysical Studies

open access: yesGeophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract The time history of the Earth's dynamic oblateness, or J2 ${J}_{2}$, is a unique climate data record, with its estimation from satellite laser ranging (SLR) tracking data beginning in 1976. Due to its impact on variations in length of day (LOD), the long‐term J2 ${J}_{2}$ time series is frequently applied to LOD studies and their contributions,
B. D. Loomis   +6 more
wiley   +1 more source

Full-waveform inversion reveals diverse origins of lower mantle positive wave speed anomalies. [PDF]

open access: yesSci Rep
Schouten TLA   +6 more
europepmc   +1 more source

Garnet as a Proxy for Deciphering Polymetamorphic Histories: An Example From the Sanandaj‐Sirjan Zone of Iran

open access: yesGeological Journal, Volume 60, Issue 4, Page 793-806, April 2025.
This work documents how the texture and composition of metamorphic garnet represent a valuable petrological archive capable of deciphering complex thermobaric histories. ABSTRACT In the central sector of the Sanandaj‐Sirjan zone of Iran, the Triassic‐to‐Jurassic ‘Hamedan Phyllites’ metamorphic complex shows a polymetamorphic evolution characterised by ...
Mirmohammad Miri   +4 more
wiley   +1 more source

Mercury isotope evidence for the importance of recycled fluids in collisional ore systems. [PDF]

open access: yesSci Adv
Xu B   +7 more
europepmc   +1 more source

Distribution and palaeoenvironmental significance of mountain blockstreams in the southern hemisphere

open access: yesJournal of Quaternary Science, Volume 40, Issue 3, Page 537-557, April 2025.
ABSTRACT Openwork mountain block deposits (blockfields, blockstreams) have received much research interest globally given their visual appeal as prominent cold‐region landforms. However, studies have shown that these landforms in both glaciated and non‐glaciated environments are probably of considerable age (pre‐Quaternary), yet the environmental ...
Stefan Grab, Jasper Knight
wiley   +1 more source

Origin and Key Enrichment Factors of Helium Resource in the Lower Yangtze Region, Eastern China. [PDF]

open access: yesACS Omega
Zhang C   +8 more
europepmc   +1 more source

Oyster shells as archives of present and past environmental variability and life history traits: A multi‐disciplinary review of sclerochronology methods and applications

open access: yesLimnology and Oceanography Letters, Volume 10, Issue 2, Page 179-199, April 2025.
Abstract Oysters inhabit a variety of coastal and deep‐sea settings over a wide latitudinal range and have a role as ecosystem engineers. They also represent an important food source for humans since hunter‐gatherer times, which motivates interest in using oyster shells as environmental and life history archives.
Vincent Mouchi   +9 more
wiley   +1 more source

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