Geothermo-barometry of andalusite-bearing pelitic rocks in the Timeball Hill Formation at the Penge area, northeastern Transvaal, South Africa

T. Miyano; Y. Kaneko; D. D. Van Reenen; N. J. Beukes

Geothermo-barometry of andalusite-bearing pelitic rocks in the Timeball Hill Formation at the Penge area, northeastern Transvaal, South Africa

T. Miyano, Y. Kaneko, D. D. Van Reenen, N. J. Beukes

University of Tsukuba

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Economically-imporant andalusite and amosite deposits are located in the contact metamorphic aureole of the Bushveld Complex, South Africa, in the Penge area of the northeastern Transvaal. The metamorphic conditions for the andalusite deposits have been estimated to be 500 ± 50°C and 1 to 2 Kbars, 535°C and 5.2 Kbar for very similar occurrence, and 350 to 450°C and 2 Kbar from the iron-formation assemblages in the amosite deposits. In this paper, we attempt to estimate the metamorphic temperature and pressure based on recent reliable garnet-biotite geothermometry and garnet-plagioclase-andalusite-quartz geobarometry in order to arrive at an acceptable pressure value. The estimate of the pressure allows us to compute a possible thickness of the Bushveld Complex overlied the Penge area. -from Authors

Original language	English
Pages (from-to)	69-73
Number of pages	5
Journal	Annual Report - University of Tsukuba, Institute of Geoscience
Volume	14
Publication status	Published - 1988
Externally published	Yes

ASJC Scopus subject areas

General Environmental Science
General Earth and Planetary Sciences

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title = "Geothermo-barometry of andalusite-bearing pelitic rocks in the Timeball Hill Formation at the Penge area, northeastern Transvaal, South Africa",

abstract = "Economically-imporant andalusite and amosite deposits are located in the contact metamorphic aureole of the Bushveld Complex, South Africa, in the Penge area of the northeastern Transvaal. The metamorphic conditions for the andalusite deposits have been estimated to be 500 ± 50°C and 1 to 2 Kbars, 535°C and 5.2 Kbar for very similar occurrence, and 350 to 450°C and 2 Kbar from the iron-formation assemblages in the amosite deposits. In this paper, we attempt to estimate the metamorphic temperature and pressure based on recent reliable garnet-biotite geothermometry and garnet-plagioclase-andalusite-quartz geobarometry in order to arrive at an acceptable pressure value. The estimate of the pressure allows us to compute a possible thickness of the Bushveld Complex overlied the Penge area. -from Authors",

author = "T. Miyano and Y. Kaneko and {Van Reenen}, {D. D.} and Beukes, {N. J.}",

year = "1988",

language = "English",

volume = "14",

pages = "69--73",

journal = "Annual Report - University of Tsukuba, Institute of Geoscience",

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T1 - Geothermo-barometry of andalusite-bearing pelitic rocks in the Timeball Hill Formation at the Penge area, northeastern Transvaal, South Africa

AU - Miyano, T.

AU - Kaneko, Y.

AU - Van Reenen, D. D.

AU - Beukes, N. J.

PY - 1988

Y1 - 1988

N2 - Economically-imporant andalusite and amosite deposits are located in the contact metamorphic aureole of the Bushveld Complex, South Africa, in the Penge area of the northeastern Transvaal. The metamorphic conditions for the andalusite deposits have been estimated to be 500 ± 50°C and 1 to 2 Kbars, 535°C and 5.2 Kbar for very similar occurrence, and 350 to 450°C and 2 Kbar from the iron-formation assemblages in the amosite deposits. In this paper, we attempt to estimate the metamorphic temperature and pressure based on recent reliable garnet-biotite geothermometry and garnet-plagioclase-andalusite-quartz geobarometry in order to arrive at an acceptable pressure value. The estimate of the pressure allows us to compute a possible thickness of the Bushveld Complex overlied the Penge area. -from Authors

AB - Economically-imporant andalusite and amosite deposits are located in the contact metamorphic aureole of the Bushveld Complex, South Africa, in the Penge area of the northeastern Transvaal. The metamorphic conditions for the andalusite deposits have been estimated to be 500 ± 50°C and 1 to 2 Kbars, 535°C and 5.2 Kbar for very similar occurrence, and 350 to 450°C and 2 Kbar from the iron-formation assemblages in the amosite deposits. In this paper, we attempt to estimate the metamorphic temperature and pressure based on recent reliable garnet-biotite geothermometry and garnet-plagioclase-andalusite-quartz geobarometry in order to arrive at an acceptable pressure value. The estimate of the pressure allows us to compute a possible thickness of the Bushveld Complex overlied the Penge area. -from Authors

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M3 - Article

AN - SCOPUS:0024250765

VL - 14

SP - 69

EP - 73

JO - Annual Report - University of Tsukuba, Institute of Geoscience

JF - Annual Report - University of Tsukuba, Institute of Geoscience

ER -

Geothermo-barometry of andalusite-bearing pelitic rocks in the Timeball Hill Formation at the Penge area, northeastern Transvaal, South Africa

Abstract

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