Results 191 to 200 of about 210,813 (245)
, 2018 This item is only available electronically. ; The Kanmantoo Cu-Au deposit has been in episodic operation since 1846, one decade after the capital city of Adelaide was established some 40 kilometres to the NW. Regionally and within the host stratigraphy there exists archetypal evidence of the Cambrian Delamerian Orogeny through a complex structural ...
B. J. Kimpton
openaire +2 more sources
Ore-bearing hydrothermal metasomatic processes in the Elbrus volcanic center, the northern Caucasus, Russia [PDF]
Geology of Ore Deposits, 2008 Precaldera, caldera, and postcaldera cycles are recognized in the geological evolution of the Pleistocene-Holocene Elbrus volcanic center (EVC). During the caldera cycle, the magmatic activity was not intense, whereas hydrothermal metasomatic alteration of rocks was vigorous and extensive. The Kyukyurtli and Irik ore-magmatic systems have been revealed
A. G. Gurbanov +6 more
openaire +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
American Mineralogist, 2021
Carbonatites and related alkaline rocks host most REE resources. Phosphate minerals, e.g., apatite and monazite, commonly occur as the main REE-host in carbonatites and have been used for tracing magmatic and mineralization processes.
Jian-Hui Su +6 more
semanticscholar +1 more source
Carbonatites and related alkaline rocks host most REE resources. Phosphate minerals, e.g., apatite and monazite, commonly occur as the main REE-host in carbonatites and have been used for tracing magmatic and mineralization processes.
Jian-Hui Su +6 more
semanticscholar +1 more source
The Hydrothermal and Hydrothermal-Metasomatic Formation of Kaolin and A Genetic Classification of Clay Rocks [PDF]
Clay Minerals, 1959 A genetic classification of clay rocks is given in which five main types are recognized. In this classification minerals of the kaolin group formed directly from hydrothermal solutions, along with sulphides, sulphates, and pneumatogenic minerals, are separated from the same minerals formed by the hydrothermal-metasomatic action of gases and vapours on ...
openaire +1 more source
Subduction, mantle metasomatism, and gold: A dynamic and genetic conjunction
GSA Bulletin, 2020Global gold deposit classes are enigmatic in relation to first-order tectonic scale, leading to controversial genetic models and exploration strategies.
D. Groves, Liang Zhang, Mamta Santosh
semanticscholar +1 more source
Geothermics, 1987
Abstract Metasomatic and hydrothermal minerals were logged throughout the SH2 geothermal well, which reached a depth of 2498 m in the Sabatini volcanic district. Below 460 m of volcanics, where the newly formed minerals were mainly chlorite, calcite and zeolites (mostly phillipsite), drilling entered the Allochthonous Flysch Complex. Evidence of the “
F. Tecce, G. Cavarretta
openaire +2 more sources
Abstract Metasomatic and hydrothermal minerals were logged throughout the SH2 geothermal well, which reached a depth of 2498 m in the Sabatini volcanic district. Below 460 m of volcanics, where the newly formed minerals were mainly chlorite, calcite and zeolites (mostly phillipsite), drilling entered the Allochthonous Flysch Complex. Evidence of the “
F. Tecce, G. Cavarretta
openaire +2 more sources
Economic Geology, 1996
A statistically rigorous approach for determining likely errors on estimates of mass and volume change in metasomatic systems is presented and then used to assess mass transfer resulting from hydrothermal alteration of marble during regional metamorphism.
Joost van Haren, Jay J. Ague
openaire +2 more sources
A statistically rigorous approach for determining likely errors on estimates of mass and volume change in metasomatic systems is presented and then used to assess mass transfer resulting from hydrothermal alteration of marble during regional metamorphism.
Joost van Haren, Jay J. Ague
openaire +2 more sources
SR-XRF study of trace element behavior during hydrothermal metasomatic alteration of host rocks at the Mutnovsky volcano [PDF]
Bulletin of the Russian Academy of Sciences: Physics, 2013 SR-XRF studies are performed on samples of altered and unaltered fresh host rocks and bottom sediments from mud pots collected at the Mutnovsky volcano. Four groups of elements are identified according to their mobility: inert (Ga, Ge, and Sr); partially mobilized into the altered rocks (Cs, Rb, Mo, Nb, Cd, and Pb); partially leached during alteration ...
S. B. Bortnikova, N. A. Abrosimova
openaire +1 more source
Acta Geologica Sinica-English, 1986
Abstract On the basis of the mechanism of formation of mineral inclusions, it may be assumed that a certain relation exists between the compositions of fluid inclusions in various minerals formed at the same stage of hydrothermal activity. In order to study the genetic relationships between different minerals in the Bayan Obo iron deposit, the ...
Hao Jicheng +5 more
openaire +2 more sources
Abstract On the basis of the mechanism of formation of mineral inclusions, it may be assumed that a certain relation exists between the compositions of fluid inclusions in various minerals formed at the same stage of hydrothermal activity. In order to study the genetic relationships between different minerals in the Bayan Obo iron deposit, the ...
Hao Jicheng +5 more
openaire +2 more sources