Results 61 to 70 of about 34,086 (157)
Widespread PREMA in the upper mantle indicated by low-degree basaltic melts. [PDF]
Nat Commun, 2023 Cai R +5 more
europepmc +1 more source
Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.Abstract Observations of the 2019 magnitude 7.1 Ridgecrest, California, earthquake indicate a relatively slow rupture (∼ ${\sim} $2 km/s). The fault is surrounded by sedimentary rocks and low‐velocity damage zones, which can amplify ground motions but also slow down rupture.
Elif Oral +2 more
wiley +1 more source
Estimates of the Global Clear‐Sky Longwave Radiative Feedback Strength From Reanalysis Data
Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.Abstract We use atmospheric profiles from ERA5, JRA55, and MERRA2 between 1993 and 2023 to estimate Earth's global clear‐sky longwave feedback strength on the seasonal and interannual timescale. Differences in the relationship of relative humidity with skin temperature prior to 2008 lead to interannual feedback strengths between 1.34 Wm−2 K−1 (JRA55 ...
Helene M. Gloeckner +3 more
wiley +1 more source
High‐Resolution Tracking of Baltica's Northward Drift in the Ordovician
Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.Abstract We investigated the paleogeography of Baltica via a paleomagnetic study of 471‐454 Ma limestones from the Siljan (Sweden) impact structure. Stepwise thermal demagnetization isolated a well‐defined magnetization component that unblocks up to the Curie temperature of magnetite and passes fold and reversal tests, indicative of a primary ...
Nastaran Ahanin, Stuart A. Gilder
wiley +1 more source
Geophysical 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
Shark Tooth Forensics: A Participatory Science Initiative to Unravel Ancient Shark Ecology
The Bulletin of the Ecological Society of America, Volume 106, Issue 2, April 2025.Abstract Studying the ecology of ancient organisms requires a tremendous amount of data, as in the case of prehistoric sharks where our knowledge is based mostly on teeth. Shark Tooth Forensics is a participatory science project tackling the problem of deciphering the ecology of ancient sharks with assistance from public school students. Traditionally,
Terry A. Gates +7 more
wiley +1 more source
Interglacial dust, ocean fertilisation and Neoproterozoic earth oxygenation
The Depositional Record, Volume 11, Issue 2, Page 654-674, April 2025.Mineral dust is an integral part of modern ocean nutrient supply. It is originated mainly in deserts and by glacial processes. Given the global scale of the Neoproterozoic glaciations, we suggest that mineral dust formed during snowball events were blown to oceans, sustaining life, promoting CO2 sequestration and contributing to the oxygenation of ...
Leandro G. DaSilva +2 more
wiley +1 more source
The Depositional Record, Volume 11, Issue 2, Page 739-763, April 2025.. The Bebedero tectonic depression in San Luis province, Argentina, is a closed drainage basin that has formed as a result of block‐faulting and rifting processes. The Bebedero lake exhibits notable similarities to the endorheic watersheds of the western United States, particularly those of Death Valley, the Saline Valley and, to a lesser extent, the ...
Eimi Ailen Font +2 more
wiley +1 more source
Geological 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
Ni isotopes provide a glimpse of Earth's pre-late-veneer mantle. [PDF]
Sci Adv, 2023 Xu Y +9 more
europepmc +1 more source