Regional Carbonate Alteration of the Crust by Mantle-Derived Magmatic Fluids, Tamil Nadu, South India
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Cites background from "Regional Carbonate Alteration of th..."
...Examples include the post-Hercynian South Tien Shan fault zone (Baratov et al. 1984), the Late Proterozoic Attur Valley of Tamil Nadu, India (Wickham et al. 1994), the Late Archean Chitradurga area of Karnataka, India (Chadwick et al. 1989), the Mid-Proterozoic Mary Kathleen Fold Belt of Queensland, Australia (Oliver et al. 1993), and the Mid-Proterozoic Bamble Shear Belt of southern Norway (Dahlgren et al. 1993)....
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...Examples include the post-Hercynian South Tien Shan fault zone (Baratov et al. 1984), the Late Proterozoic Attur Valley of Tamil Nadu, India (Wickham et al. 1994), the Late Archean Chitradurga area of Karnataka, India (Chadwick et al. 1989), the Mid-Proterozoic Mary Kathleen Fold Belt of…...
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111 citations
Cites background from "Regional Carbonate Alteration of th..."
...Depending on the initial bulk composition, a supercritical carbonatite magma may either split into carbonate-rich and NaCl-rich fractions during cooling (path A), in which case a carbonatite–fenite association may develop, or pass continuously into ultrasaline fluids (path B) capable of voluminous carbonate alteration of country rocks, as in the carbonate-metasomatized megashear zones like the Attur Fault Zone of South India (Wickham et al. 1994)....
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...…(path A), in which case a carbonatite–fenite association may develop, or pass continuously into ultrasaline fluids (path B) capable of voluminous carbonate alteration of country rocks, as in the carbonate-metasomatized megashear zones like the Attur Fault Zone of South India (Wickham et al. 1994)....
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...shear zones like the Attur Fault Zone of South India (Wickham et al. 1994)....
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"Regional Carbonate Alteration of th..." refers methods in this paper
...First the samples were reacted at 25°C for about 24 hrs, which liberated CO2 from the calcite component in the sample (McCrea 1950)....
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"Regional Carbonate Alteration of th..." refers methods in this paper
...…+5.9 Alkali gabbro (shonkinite) R405 +6.2 R258 +6.4 a [] omitted from mean. b 87Sr b 86. of sample at 800 Ma. fraction entirely from ankerite, and by using published values for Aco2-calcite and Aco2-ankerite at the appropriate temperatures (Friedman and O'Neil 1978; Rosenbaum and Sheppard 1986)....
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"Regional Carbonate Alteration of th..." refers background in this paper
...The variation of Aquartz dolomite with temperature may be estimated from experimental and empirical determinations of the fractionation between the mineral pairs quartz-calcite and dolomite-calcite (Northrop and Clayton 1966; Sheppard and Schwarcz 1970; Matthews and Katz 1977; Clayton et al. 1989)....
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...…N=17, mean= 1.8, (Jiang et al., 1988) T=450-620°C Aquartz- ankerite, Hamersley Range, (Becker & Clayton, 1976), N=26, mean =2.1 T ~ 300°0 C A quartz-dolomite, ~500°C Clayton et al., 1989; Sheppard & Schwarcz, 1970; Northrop & Clayton, 1966; Matthews & Katz, 1977. quartz-plagioclase Figure 6....
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...Quartzankerite fractionations are similar to those predicted for quartz-dolomite at a temperature of ~500°C (Northrop and Clayton 1966; Sheppard and Schwarcz 1970; Matthews and Katz 1977; Clayton et al. 1989) and indicate significantly higher temperatures than the quartz-ankerite pairs from the…...
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416 citations