Magmatic systems
Stable vanadium isotopes as a redox proxy in magmatic systems
... is similar for both suites. Instead, the primary control on isotope fractionation appears to be differences in mineral-melt bonding environment. Oxide minerals such as (titano)magnetite host the majority of V in ...
5
Platinum group elements: indicators of sulfide saturation in intermediate to felsic magmatic systems and implications for porphyry deposit formation
... the magmatic evolution of porphyry systems is emerging as an important control on the fertility of magmas with respect to the chalcophile ...active magmatic system with no known associated porphyry ...
330
Alkaline Earth Element Partitioning in Simplified Magmatic Systems
... any magmatic process occurring within 8000 years, or five half-lives of 226 ...in magmatic systems experiencing plagioclase crystallization produces an apparent crystallization age older than that of ...
193
Water-melt interaction in hydrous magmatic systems at high temperature and pressure
... hydrous magmatic systems in the Earth's interior have been ...felsic magmatic melts are more sensitive to water content than more mafic ...hydrous magmatic melts can be modeled with the aid of ...
18
Sn-W-Critical metals & associated magmatic systems: an international geological conference. Extended abstracts
... Breccia-hosted systems are less commonly developed, consistent with the significantly lower B contents of I-type, relative to S-type Sn systems (Pollard et ...Sn systems in the SNEO and FNQ has been ...
134
Understanding and forecasting phreatic eruptions driven by magmatic degassing
... and magmatic gases are vastly different in character; thus, small changes in a volcano’s hydrothermal system result in significant and readily detectable changes in gas composition (de Moor et ...from ...
19
A new methodology for the study of the magmatic hydrothermal transition in felsic magmas: applications to barren and mineralised systems
... felsic magmatic systems, one mineralised, the other ...of magmatic vapour and aqueous liquids, and how it is manifested in quartz-hosted inclusions, as well as the nature and composition of the ...
25
Melt inclusion record of magmatic immiscibility in crustal and mantle magmas
... evolved magmatic systems, the components of a dispersed hydrosaline phase must have varying composition, because of the variability of diffusion rates for different ...
18
The arc arises: The links between volcanic output, arc evolution and melt composition
... Glass inclusions can provide detailed insights into magmatic systems since they represent distinct magma batches trapped dur- ing melt ascent from the mantle source region to the surface. In this respect, ...
12
Geological features of the Jiaoxi tungsten deposit in the western Bangong-Nujiang metallogenic belt, Tibet, China
... Sn-W-Critical Metals & Associated Magmatic Systems An International Geological Conference EXTENDED ABSTRACTS Edited by: Kaylene Camuti, Jan Marten Huizenga, Carl Spandler, Yanbo Cheng Ho[r] ...
6
Magmatic Interaction as Recorded in Texture and Composition of Plagioclase Phenocrysts from the Sirjan Area, Urumieh-Dokhtar Magmatic Arc, Iran
... Tertiary andesitic basalts of the Sirjan area, Urmieh-Dokhtar Magmatic Arc, Iran, contain plagioclase phenocrysts enclosed in a matrix of amphibole, clinopyroxene and rare olivine crystals. Textural and ...
9
Mineralogy, petrochemistry and magmatic history of Tamar lavas
... Comparison of .the differentiation trends of ,the Black Jack, Prospect and Circular Head bodies plotted in the variation diagrams in Figures 2, 3 and 4, with tha,t of the coarse basalt o[r] ...
20
Experimental and petrological investigations of some magmatic phenomena
... uprise of a liquid picritic magma, the confining pressure would decrease and the volatiles would be free to escape, but the high concentration of volatiles in the fused sediment near Sil[r] ...
250
Reaction path models of magmatic gas scrubbing
... clear that reactions between magmatic gases and aquifers play a key control on the chemistry of fluids released by quiescent volcanoes (Doukas and Gerlach, 1995; Symonds et al., 2001). However, due to the ...
48
Synthesis of global satellite observations of magmatic and volcanic deformation: implications for volcano monitoring & the lateral extent of magmatic domains
... Some of the characteristics of volcanic and magmatic deformation signals measurable with InSAR can be il- luminated by comparison to the properties of deform- ation measured with ground-based instrumentation. ...
26
Seismogenic frictional melting in the magmatic column
... Abstract. Lava dome eruptions subjected to high extru- sion rates commonly evolve from endogenous to exogenous growth and limits to their structural stability hold catas- trophic potential as explosive eruption triggers. ...
10
Magmatic record of India Asia collision
... Formation was followed by bimodal volcanic suites in both the Nianbo and Pa’na formations. Figure 3b reveals an increase in zircon saturation temperature at ca. 52 Ma documented by the rhyolitic rocks in the Pa’na ...
8
Charnockite microstructures: from magmatic to metamorphic
... Holland’s definition of charnockites was refined in a subsequent paper published eight years later (Holland, 1908), in which it was given as “a quartz-feldspar-hypersthene-iron minerals-bearing rock”, of a blue-grey to ...
9
A cascade of magmatic events during the assembly and eruption of a super-sized magma body
... Extension Extension Taupo magmatic system A Phase 3 vent area A’ Phases 1 and 2 vent area NE dome bt-bearing magmatic system A” 0 Rifting & lateral migration of NEdome-type magma 4 Oruan[r] ...
71
Temperature time evolution of the Assynt Terrane of the Lewisian Gneiss Complex of Northwest Scotland from zircon U Pb dating and Ti thermometry
... dating by Corfu et al. (1994) suggested it occurred at ∼ 2710 Ma but ion microprobe dating by Friend and Kinny (1995) led them to interpret it occurred at ∼ 2500 Ma. A novel approach of sequential CA-ID-TIMS zircon U-Pb ...
21