Results 21 to 30 of about 658,079 (225)
Geochemistry, Geophysics, Geosystems, 2023 Continental interiors were flooded by epeiric seas during many intervals of the geologic past. Few modern analogs exist for these environments, however, and basic variables such as redox, salinity, and restriction are difficult to reconstruct in deep ...
Geoffrey J. Gilleaudeau +7 more
doaj +1 more source
Lower carboniferous of the Appalachian basin [PDF]
Geological Society of America Bulletin, 1903 n ...
openaire +1 more source
Youqicang pingjia yu kaifa, 2022 Normal pressure shale gas plays such as the Ohio Formation Shale and Marcellus Formation Shale in the Appalachian Basin in the U.S. have been developed commercially.
JIANG Shu +7 more
doaj
Phylogenomics of paleoendemic lampshade spiders (Araneae, Hypochilidae, Hypochilus), with the description of a new species from montane California [PDF]
ZooKeys, 2022 Hypochilus is a relictual lineage of Nearctic spiders distributed disjunctly across the United States in three montane regions (California, southern Rocky Mountains, southern Appalachia). Phylogenetic resolution of species relationships in Hypochilus has
Erik Ciaccio +2 more
doaj +3 more sources
Upper Ordovician hardgrounds – from localized surfaces to global biogeochemical events [PDF]
Estonian Journal of Earth Sciences, 2023 Upper Ordovician hardgrounds display a spectrum of complexity reflecting a range of local to global-scale processes. Hardgrounds are cemented seafloor surfaces typically marked by the presence of encrusting taxa and borings.
Timothy R. Paton +4 more
doaj +1 more source
Carboniferous of the Appalachian basin
Geological Society of America Bulletin, 1904 Introduction In a former memoir* the writer described the Lower Carboniferous or Mississippian of the Appalachian basin. In this the effort will be to describe the lowest formation of the Coal Measures or Pennsylvanian of the same basin. The Coal Measures were studied in detail first in the Virginias and Pennsylvania by Professors William B.
openaire +2 more sources
Remagnetization of Marcellus Formation in the Plateau Province of the Appalachian Basin
Frontiers in Earth Science, 2019 An integrated paleomagnetic, magnetic fabric, and petrographic study of two cores (EC, oriented; DB, unoriented) in the Devonian Marcellus Formation from the Plateau Province (PA) indicates the presence of chemical remanent magnetizations (CRMs) and ...
Alex Kayla Steullet +3 more
doaj +1 more source
Letters supporting Appalachian National Park movement
, 2015 Various organizations expressed support for an Appalachian National Park. A movement for a national park in the Appalachians was spearheaded by Appalachian National Park Association, formed in 1899.
Gwyn, Walter B., 1853-1911;
core +2 more sources
Geochemistry, Geophysics, Geosystems, 2023 Seismic anisotropy beneath eastern North America, as expressed in shear wave splitting observations, has been attributed to plate motion‐parallel shear in the asthenosphere, resulting in fast axes aligned with the plate motion.
Yantao Luo +4 more
doaj +1 more source
The Appalachian area as a tectonostratigraphic analogue for the Barents Sea shelf [PDF]
, 2021 This is the peer reviewed version of the following article: Martins, Ettensohn, Knutsen. The Appalachian area as a tectonostratigraphic analogue for the Barents Sea shelf. Basin Research.
Stig‐Morten Knutsen +5 more
core +1 more source