Results 121 to 130 of about 89,166 (344)

Shirokinsky ore cluster (eastern Transmbaikal): formation conditions, petrochemistry of rocks and ores, association between mineralization and magmatism

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2017
Relevance of the work is in revealing conditions of formation of rocks and ores from the Shirokinsky ore cluster. The distinctive feature of the ore cluster is the high gold mineralization of its polymetallic ores.
Bair Namzhilovich Abramov   +3 more
doaj   +2 more sources

Mercury's geochronology revised by applying Model Production Functions to Mariner 10 data: geological implications [PDF]

open access: yes, 2009
Model Production Function chronology uses dynamic models of the Main Belt Asteroids (MBAs) and Near Earth Objects (NEOs) to derive the impactor flux to a target body.
Blewett   +30 more
core   +1 more source

An evaluation of Mesozoic rift-related magmatism on the margins of the Labrador Sea: Implications for rifting and passive margin asymmetry

open access: yes, 2016
The Labrador Sea is a small (∼900 km wide) ocean basin separating southwest Greenland from Labrador, Canada. It opened following a series of rifting events that began as early as the Late Triassic or Jurassic, culminating in a brief period of seafloor ...
A. Peace   +6 more
semanticscholar   +1 more source

The older ultramafic rocks of Aberdeenshire, similarities to SSZ ophiolites and significance for regional tectonics [abstract] [PDF]

open access: yes, 2008
It has long been known that there are at least two phases of mafic-ultramafic magmatism in NE Scotland (Read 1919), the well known Younger Gabbro suite and a lesser known ‘Older suite’.
Styles, Michael
core  

Sea-floor tectonics and submarine hydrothermal systems [PDF]

open access: yes, 2005
The discovery of metal-depositing hot springs on the sea floor, and especially their link to chemosynthetic life, was among the most compelling and significant scientific advances of the twentieth century. More than 300 sites of hydrothermal activity and
de Ronde, Cornell D. J.   +2 more
core   +1 more source

XXIV ALLRUSSIA YOUTH CONFERENCE ON STRUCTURE OF LITHOSPHERE AND GEODYNAMICS, IRKUTSK, RUSSIA, APRIL 19–24, 2011

open access: yesГеодинамика и тектонофизика, 2015
The information on the XXIV AllRussia youth conference on structure of lithosphere and geodynamics is presented. It was held on April 19–24, 2011 at the Institute of the Earth’s Crust, Irkutsk. The scope of conference is presented.
Victoria A. Khak
doaj   +1 more source

Granite magmatism and mantle filiation

open access: yesEuropean Journal of Mineralogy
Abstract. Current granite magma generation models essentially reduce to two groups: (1) intra-crustal melting and (2) basaltic origin. A mixed, crustal, and basaltic origin and therefore a mantle filiation has been proposed for most granite magma types.
Pichavant, Michel   +3 more
openaire   +5 more sources

METASOMATIC AND MAGMATIC PROCESSES IN THE MANTLE LITHOSPHERE OF THE BIREKTE TERRAIN OF THE SIBERIAN CRATON AND THEIR EFFECT ON THE LITHOSPHERE EVOLUTION

open access: yesГеодинамика и тектонофизика, 2015
The area of studies covers the north-eastern part of the Siberian craton (the Birekte terrain), Russia. The influence of metasomatic and magmatic processes on the mantle lithosphere is studied based on results of analyses of phlogopite- and phlogopite ...
Lidia V. Solov’eva   +5 more
doaj   +1 more source

Lithospheric controls on melt production during continental breakup at slow rates of extension: Application to the North Atlantic

open access: yes, 2009
Rifted margins form from extension and breakup of the continentallithosphere. If this extension is coeval with a region of hotter lithosphere,then it is generally assumed that a volcanic margin would follow.
Armitage, J.J.   +3 more
core   +1 more source

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