Results 171 to 180 of about 44,839 (285)
Systematic Entomology, Volume 50, Issue 4, Page 1025-1040, October 2025.Phylogenomic analysis of 2524 ultraconserved‐element loci from 58 Messor harvester ant species helps in redefining taxonomic groups of the genus. Messor ants emerged in the Irano‐Indian area around 20 million years ago, rapidly dispersing to the Western Palaearctic and Northeastern Africa during the early Miocene.
Yannick Juvé +10 more
wiley +1 more source
A compilation of information and data on the Manson impact structure [PDF]
A problem for the impact hypothesis for the Cretaceous-Tertiary (K-T) mass extinction is the apparent absence of an identifiable impact site. The Manson Impact Structure is a candidate because it is the largest recognized in the U.S.; it is relatively ...
Anderson, Raymond R., Hartung, Jack B.
core +1 more source
Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.Abstract The uplift history of the Gangdese arc in Southern Tibet is fundamental to understanding when and how the plateau attained its current elevation and topographic relief. Detrital multi‐mineral provenance analysis of the Oligocene–Miocene strata in the intermontane Wuyu Basin provides new key information on the paleodrainage evolution in ...
Er‐Kun Xue +5 more
wiley +1 more source
Phanerozoic Onset of Massive Continental Weathering
Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.Abstract Continental weathering acts as a nexus of global biogeochemical cycles yet its long‐term evolution remains unclear. Here we show that continental weathering may not have operated on a massive scale until the early Paleozoic based on a large‐number data compilation of mudstone geochemistry.
Shenghui Ouyang +6 more
wiley +1 more source
Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.Abstract Boundaries in the Phanerozoic chronostratigraphic scale are mainly precisely defined and dated, and many correspond to environmental catastrophes induced by the emplacement of LIPs. The pre‐Ediacaran geological timescale is currently subdivided by approximate absolute ages.
Shuan‐Hong Zhang +7 more
wiley +1 more source
Controls on the expression of igneous intrusions in seismic reflection data [PDF]
, 2015 Jackson, CA-L +3 more
core +1 more source
Applicability of ERTS-1 to Montana geology [PDF]
The author has identified the following significant results. Late autumn imagery provides the advantages of topographic shadow enhancement and low cloud cover.
Alt, D. D. +6 more
core +1 more source