Results 61 to 70 of about 299,133 (214)
, 2015 Precambrian geology of the Tarim Craton, especially for the crustal evolution, is poorly constrained. Paleoproterozoic metasedimentary rocks are extensively exposed in the Kuluketage Block, northern Tarim Craton, and thus have recorded abundant ...
Yuan, C. +14 more
core +1 more source
Long‐term trends in greenness in the alpine zone of northeastern North America from remote sensing
Ecosphere, Volume 17, Issue 9, September 2026.Abstract Alpine zones above treeline in the Appalachian Mountains and adjacent ranges of northeastern North America support distinctive ecological communities that thrive where conditions are too harsh for trees to grow. These communities differ from alpine zones elsewhere on the continent and are a regionally important source of floristic biodiversity,
Jonathan W. Chipman +2 more
wiley +1 more source
, 1979 Stratigraphy and uranium potential of Early Proterozoic metasedimentary rocks in the Medicine Bow Mountains ...
K.E. Karlstrom (8754141) +1 more
core +1 more source
Source and tectono-metamorphic evolution of mafic and pelitic metasedimentary rocks from the central Quetico metasedimentary belt, Archean Superior Province of Canada [PDF]
Precambrian Research, 2004 Abstract A study of the sedimentary rocks in the Jean Lake area of the Quetico metasedimentary belt, Superior Province, Canada, was conducted in order to evaluate the origin, source, and evolution of rocks, including mafic rocks previously mapped as ultramafics rocks. Bulk compositions of these sedimentary rocks show a mixing between two end members:
Valli, Franck +2 more
openaire +2 more sources
Earth Surface Processes and Landforms, Volume 51, Issue 9, September 2026.Base level fall driven by glacio‐isostatic rebound created a suite of migrating knickpoints on the Isle of Jura. Modelling knickpoint retreat rate with different models of erodibility based on rock strength data reveals that accounting for the contrast in bed load and bedrock strength best explains knickpoint retreat rate. Abstract Bedrock rivers are a
Adam G. G. Smith +3 more
wiley +1 more source
, 2022 ISBN : 978-1-74168-964-8 / ISSN : 1834-2280U–Pb and Lu–Hf isotope data for detrital zircons from metasedimentary rocks of the Lamboo Province have been used to test collisional and intraplate geodynamic models for the Paleoproterozoic development of the ...
Lu, Yong-Jun +10 more
core +4 more sources
Геодинамика и тектонофизика, 2018 The article presents the results of Sm-Nd isotope geochemical studies of the Upper Paleozoic metasedimentary rocks of the Dzheskogon, Nektera and Bochagor suites of the Dzhagda terrane.
V. A. Zaika, A. A. Sorokin, V. P. Kovach
doaj +1 more source
Lithostratigraphy of the Mesoproterozoic Vemork formation, central Telemark, Norway [PDF]
Bulletin of the Geological Society of Finland, 2007 The Vemork formation forms a c. 2 km thick volcanic-sedimentary unit above the 1510 – 1500 Ma old Tuddal felsic volcanite formation, the oldest unit of the Mesoproterozoic Telemark supracrustals in southern Norway.
K. Laajoki, F. Corfu
doaj +1 more source
Magnetic fabric and rock magnetic studies of metasedimentary rocks in the central Okcheon Metamorphic Belt, Korea [PDF]
Earth, Planets and Space, 2005 Abstract Anisotropy of magnetic susceptibility (AMS) and rock magnetic studies have been carried out for the metasedimentary rocks in the central Okcheon Metamorphic Belt. The study area is divided into three metamorphic zones: the biotite zone, the garnet zone, and the sillimanite+andalusite zone from southeast to northwest.
Park, Yong-Hee +3 more
openaire +1 more source
Composition and Provenance of Victoria Group Sandstones in Southern North Victoria Land, Antarctica
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 3, September 2026.Three distinct source areas contributed to sandstones of the Victoria Group within the Transantarctic Basin in southern North Victoria Land. During the Permian, quartzose sandstones were derived from erosion of the local Ross Orogen, likely from an uplifted swell in the area of today's Ross Sea, the Ross High.
Martin Elsner +6 more
wiley +1 more source