Results 191 to 200 of about 7,051 (253)

The role of an oxidized lithospheric mantle in gold mobilization. [PDF]

Sci Adv
Qiu KF, Romer RL, Long ZY, Williams-Jones AE, Yu HC, Turner S, Wang QF, Li SS, Zhang JY, Duan HR, Deng J.   +10 more
europepmc   +1 more source

Metasomatic alteration of pelagic ooze on spreading ocean ridges

Marine Geology, 1982
Abstract The lithologic unit 5 at DSDP Site 251 on the western flank of the southwest branch of the Indian Ocean Ridge, in which low-temperature metasomatic grandite hydrogarnet occurs, is shown to have been a nannofossil ooze when the hydrothermal solution was introduced. Extensive recrystallization of calcite occurred subsequent to the formation of
A J Easton
exaly   +3 more sources

Metasomatic alteration of the predominantly island arc igneous suite of the Limestone Caribbees (E. Caribbean)

Geologische Rundschau: Zeitschrift Fur Allgemeine Geologie, 1976
Petrographic and geochemical study of 79 samples from the Limestone Caribbee islands of Antigua, St. Martin and Desirade show different degrees of metasomatic alteration resulting from burial metamorphism up to lower zeolite facies (with laumontite and prehnite).
Bernard M. Gunn, M. J. Roobol
exaly   +3 more sources

Supergene alteration since the upper cretaceous on alkaline igneous and metasomatic rocks of the Poços de Caldas ring complex, Minas Gerais, Brazil

Applied Geochemistry, 1997
Ida Valeton, A. Schumann, Roland Vinx, Martin Wieneke   +3 more
exaly   +2 more sources

Infrared spectral identification of metasomatic alteration minerals and its implication to gold exploration in Shihu Gold Deposit, Hebei Province, P.R. China

Proceedings of SPIE, 2014
Jiacheng Liu, Yuzeng Yao
exaly   +2 more sources

Some of the next articles are maybe not open access.

Related searches:

Experimental investigation into the disturbance of the Sm-Nd isotopic system during metasomatic alteration of apatite

Geochimica Et Cosmochimica Acta, 2022
Abstract In order to understand the effect of fluid-induced alteration on the Sm-Nd isotope systematic in apatite, a series of fluid/apatite reaction experiments, which involve reacting the well-characterized Durango fluorapatite with CO2 ± CaCO3-, NaF- or HCl ± CaCl2-bearing solutions with a known 143Nd/144Nd ratio, were conducted at 800 or 600 °C ...
Daniel E Harlov, Hao Hu
exaly   +4 more sources

TRANSFORMATION OF ORGANIC MATTER DURING METASOMATIC ALTERATION

International Geology Review, 1989
Ye. S. Larskaya, R. G. Pankina, O. P. Chetverikova, I. V. Kucherenko, A. N. Sukhova, T. Yu. Pentina, Yu. M. Korolev   +6 more
exaly   +2 more sources

Metasomatic alterations of olivine inclusions in the Budulan mesosiderite

Petrology, 2010
Mesosiderites are thermal metamorphic breccias consisting of fragments of pyroxene-plagioclase rocks and FeNi metal. The silicate constituent of mesosiderites has a chemical and oxygen isotopic composition analogous to those of meteorites of the HED group: howardites, eucrites, and diogenites.
Lorenz, C. A., Nazarov, M. A., Brandstaetter, F., Ntaflos, Theodoros   +3 more
openaire   +1 more source

Lagrangian and Eulerian Representations of Metasomatic Alteration of Minerals

1987
Both Lagrangian and Eulerian formulations of fluid flow coupled to fluid/rock interaction provide complete descriptions of metasomatic processes based on a continuum representation of porous media. The Eulerian method is an inherently transient description of advective and diffusive/dispersive transport referred to a reference frame that is fixed with ...
Peter C Lichtner, Harold C Helgeson, William M Murphy   +2 more
exaly   +2 more sources

Carbonic Metasomatism and Charnockitic Alteration

Journal Geological Society of India, 1994
Abstract Field relations in an orthogneiss quarry within the Palghat Gap region illustrate the development of charnockite alteration halos surrounding alkaline pegmatite dykes. Altered orthopyroxenes in the charnockitic zones are artifacts from concordant melt pockets within the gneisses, where orthopyroxene has developed prior to the ...
M. Santosh, U. P. Radhika
openaire   +1 more source