Results 71 to 80 of about 315,004 (173)

A Petrographic and Structural Analysis of Metasedimentary Rocks on the Boundary of the Piedmont and Blue Ridge Provinces, Central Virginia

open access: yes, 2015
The Howardsville 7.5’ quadrangle is located on the boundary between Proterozoic Blue Ridge rocks and early Paleozoic Piedmont rocks in central Virginia.
Spears, Anna
core   +1 more source

Hybridization between I-type and S-type granites in the ordovician famatinian magmatic arc, Tafí del Valle, Tucumán, NW Argentina

open access: yesGeologica Acta, 2018
In the Tafí del Valle region, in northwestern Argentina, several intrusive bodies of lower Paleozoic age were emplaced in the metasedimentary Puncoviscana Formation, belonging to the Sierras Pampeanas. Four intrusive bodies outcrop in the study area: La
J.P. LÓPEZ   +3 more
doaj  

Earthquakes and the Metamorphic Sole of the Tinos Ophiolite, Cyclades, Greece

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract We analyze deformation fabrics, compositions of melts, metamorphic temperatures, and paleopiezometric data beneath the Tsiknias Thrust, Tinos, Greece, which formed part of the plate boundary that, in Late‐Cretaceous time, absorbed convergence between Africa and Europe associated with final closure of the Vardar Ocean.
Thomas Lamont   +3 more
wiley   +1 more source

Geochronology of metasedimentary and igneous rocks in the Lamboo Province, Kimberley region: reassessing collisional geodynamic models

open access: yes, 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   +2 more sources

Multiple Subduction–Exhumation Cycles and Episodic Hydration–Metasomatism of an Oceanic Eclogite Block: Implications for Thermal Structure Evolution and Mass Transfer at the Subduction Interface

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract The rarity of natural rocks that specifically record the physicochemical conditions of the subduction interface strongly hampers pertinent studies on metamorphic trajectories of high‐pressure (HP) rocks and related fluid–rock interactions. This study examines an oceanic eclogite block from the Huwan shear zone in the Hong'an orogen.
Dadi Cao   +4 more
wiley   +1 more source

Geologica Carpathica / Provenance of Paleozoic very low- to low-grade metasedimentary rocks of South Tisia (Slavonian Mountains, Radlovac Complex, Croatia) [PDF]

open access: yes, 2013
Monazite age dating, detrital heavy mineral content and whole-rock geochemistry provided insight into the provenance, depositional history and paleogeological setting of the Radlovac Complex very low- to low-grade metasedimentary rocks (South Tisia ...
Lužar-Oberiter, Borna   +4 more
core   +1 more source

Precambrian crustal evolution and Cretaceous–Palaeogene faulting in West Greenland: Evolution of Neoarchaean supracrustal belts at the northern margin of the North Atlantic Craton, West Greenland [PDF]

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2006
The Archaean North Atlantic Craton of West Greenland collided at c. 1.9 Ga with a lesser-known Archaean craton to the north, to form the Nagssugtoqidian orogen.
Stensgaard, Bo Møller   +4 more
doaj  

An Ediacaran Metasedimentary Fragment With Northern Gondwana Affinity in the Southern East Kunlun Accretionary Belt, Northern Tibetan Plateau: Implications for the Dispersal of Peri‐Gondwanan Terranes

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Precambrian supercontinent reconstructions largely rely on robust geological constraints. Among these, the basin affinities recorded by Precambrian sedimentary fragments preserved in orogenic belts provide critical evidence for resolving the paleogeographic configurations of microcontinents and continental blocks.
Yongcheng Li   +14 more
wiley   +1 more source

RI-38 Tourmaline in Early Proterozoic Metasedimentary Rocks Near Philbrook, Northeastern Todd County, Central Minnesota

open access: yes, 1989
Boerboom, Terrence J.. (1989). RI-38 Tourmaline in Early Proterozoic Metasedimentary Rocks Near Philbrook, Northeastern Todd County, Central Minnesota.
Boerboom, Terrence J.
core  

Data for: Geochronological, and geochemical constraints on the genesis of the Jiertieke-Zankan iron-hosted metasedimentary rocks of the West Kunlun Orogenic Belt, Xinjiang (NW China)

open access: yes, 2019
Geochronological, and geochemical constraints on the genesis of the Jiertieke-Zankan iron-hosted metasedimentary rocks of the West Kunlun Orogenic Belt, Xinjiang (NW ...
zhang, L (via Mendeley Data)   +1 more
core   +2 more sources

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