Meteoritics &Planetary Science, EarlyView.Abstract We report new results from a study of shock‐related features in the L6 ordinary chondrites Northwest Africa (NWA) 4672 and NWA 12841. Our observations confirm the occurrence of eight high‐pressure (HP) minerals in each meteorite, namely, ringwoodite, majorite, akimotoite, wadsleyite, albitic jadeite, lingunite, tuite, and xieite.
I. Baziotis +5 more
wiley +1 more source
U-Pn geochronology of deformed metagranites in central Sutherland, Scotland: evidence for widespread late Silurian metamorphism and ductile deformation of the Moine Supergroup during the Caledonian orogeny [PDF]
, 2003 Within the Caledonides of central Sutherland, Scotland, the Neoproterozoic metasedimentary rocks of the Moine Supergroup record NW-directed D2 ductile thrusting and nappe assembly, accompanied by widespread tight-to-isoclinal folding and amphibolite ...
Friend, C.R.L. +5 more
core +1 more source
Some record it hot: Clumped isotope temperatures from Middle Jurassic molluscan aragonite
Sedimentology, EarlyView.ABSTRACT Clumped isotope (Δ47) data from the shell aragonite of Praemytilus strathairdensis, a non‐marine Middle Jurassic mytilid from the Inner Hebrides of Scotland, presents a rare geological context for better understanding the effects of diagenesis on Δ47 in skeletal aragonite. Nineteen P. strathairdensis shells gave Δ47 temperatures between 23 ± 5°
Richmal B. Paxton +4 more
wiley +1 more source
Terra Nova, EarlyView.ABSTRACT The Carboniferous‐Permian Tarija basin of southern Bolivia evolved under major tectonic and climatic influence. The timing of transition from glacially influenced to arid conditions, after the Gondwanide tectonic event, has been based mainly on palynological correlations.
Felipe R. Ferroni +4 more
wiley +1 more source
Spatial Distribution of the Surface Geology and 1992 Land Use of the Buffalo River Watershed [PDF]
, 1995 The Buffalo River was established by Congress in 1972 as the first National River in the United States and is one of the few remaining free-flowing streams in Arkansas .
Hofer, Kimberly R. +2 more
core +2 more sources
Sampling methane in basalt on Earth and Mars [PDF]
, 2013 Peer reviewedPublisher ...
Blamey, Nigel J F +2 more
core +1 more source
PetroleumBased on the drilling, logging and field analysis, this paper discusses the lithofacies paleogeography of the Ordovician and its petroleum potential in the Middle-Upper Yangtze Area, South China.
Wenzheng Li +9 more
doaj +1 more source
Diagenetic facies of carbonate rocks in Yijianfang Formation, Shunbei area, Tarim Basin
Shiyou shiyan dizhi, 2020 The diagenetic facies of the Ordovician Yijianfang Formation in the Shunbei area of the Tarim Basin was analyzed using drilling core description, thin section observation, as well as logging trace and seismic data analysis.
Chuanjie CHENG +4 more
doaj +1 more source
Devonian Sandstone Lithostratigraphy, Northern Arkansas [PDF]
, 1977 Two areas of Devonian sandstone development may be recognized in northern Arkansas. In northwestern Arkansas, the Clifty Formation comprises a massively bedded, super mature quartz arenite of Middle Devonian age overlain by thinner bedded, phosphatic ...
Hall, Jeffery D., Manger, Walter L.
core +2 more sources
The early evolution of land plants, from fossils to genomics: a commentary on Lang (1937) ‘On the plant-remains from the Downtonian of England and Wales' [PDF]
, 2015 © 2015 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
Burgess ND +12 more
core +1 more source