Results 101 to 110 of about 313,354 (211)

The structure, stratigraphy and strain history of the Seine Group and related rocks near Mine Centre, Northwestern Ontario [PDF]

, 1982
One or possibly two overlapping periods of deformation are responsible for the structures observed in the rocks in the Seine River area. This deformation has resulted in the formation of tight to isoclinal, non-plane approximately cylindrical major F1
Jackson, Paul Anthony
core  

Ordovician volcanic-arc terrane in the Central Appalachian Piedmont of Maryland and Virginia: SHRIMP U-Pb geochronology, field relations, and tectonic significance

, 2016
U-Pb zircon geochronology and field relations provide insights into metavolcanic and associated rocks in the Central Appalachian Piedmont of Maryland and northern Virginia.
Horton, J W, Drake, Avery Ala, Aleinikoff, John N., Fanning, Christopher   +3 more
core   +1 more source

Geochronology, Nd isotopes and reconnaissance geochemistry of volcanic and metavolcanic rocks of the Sao Luis Craton, northern Brazil: Implications for tectonic setting and crustal evolution [PDF]

, 2009
New field work, in addition to zircon geochronology, Nd isotopes and reconnaissance geochemical data allow the recognition of Paleoproterozoic volcanic and metavolcanic sequences in the São Luís Craton of northern Brazil.
BRITO, Reinaldo S. C., MOURA, Candido A. V., ARMSTRONG, Richard, LOBATO, Denise C., KLEIN, Evandro L., LUZARDO, Rene   +5 more
core  

Metamorphism of the MacLean Lake and Central Metavolcanic belts, La Ronge domain, Trans-Hudson Orogen: pressure-temperature variations and tectonic implications

, 1998
Metamorphic assemblages differ between the metasedimentary MacLean Lake belt and the adjacent Central Metavolcanic belt in the La Ronge domain, Trans-Hudson Orogen.
Haiming Yang, Kevin Ansdell, Kurt Kyser
core   +1 more source

Clastic sedimentary rocks of the Michipicoten Volcanic-sedimentary belt, Wawa, Ontario [PDF]

, 1983
The Wawa area, part of the Michipicoten greenstone belt, contains rock assemblages representative of volcanic sedimentary accumulations elsewhere on the shield.
Ojakangas, R. W.
core  

Test of a spreading-ridge subduction model for the origin of granitoid plutons and metavolcanic complexes in the Palaeoproterozoic Pinal forearc/subduction complex of Southern Arizona, USA

, 2016
The Pinal terrane of southern Arizona has been characterized as a Palaeoproterozoic forearc/subduction complex (Meijer 2014). It contains granitoid plutons and metavolcanic rocks with arc affinities that have a spatial distribution reminiscent of plutons
Arend Meijer (2810965)
core   +1 more source

Sr–Nd isotopic compositions of Paleoproterozoic metavolcanic rocks from the southern Ashanti volcanic belt, Ghana

Neodymium (Nd) and strontium (Sr) isotopic data are presented for Paleoproterozoic metavolcanic rocks in the southern part of the Ashanti volcanic belt of Ghana. The metavolcanic rocks are predominantly basalts/basaltic andesites and andesites with minor
Dampare, Samuel, Manu, Johnson, Okano, Osamu, Asiedu, Daniel, Shibata, Tsugio, Sakyi, Patrick   +5 more
core  

Geology and alteration associated with the Hamlin Lake VMS system, Shebandowan Greenstone belt, Northwestern Ontario, Canada [PDF]

, 2008
The Hamlin Lake area is located approximately 120 km southwest of the City of Thunder Bay, Ontario within the Shebandowan greenstone belt of the Wawa Subprovince, Superior Province.
Shute, Amy Lynn
core  

Geology of a Sulfide Deposit in Lower Precambrian Metavolcanic-Metasedimentary Rocks near Birchdale, Koochiching County, Minnesota

, 1974
A Thesis submitted to the faculty of the Graduate School of the University of Minnesota by William Harold Listerud in partial fulfillment of the requirements for the degree of Master of Science, February 1974.
Listerud, William Harold
core  

Geochemistry of metavolcanic rocks from the Ranyah area, Kingdom of Saudi Arabia [PDF]

Open-File Report, 1985
openaire   +1 more source