RAPAKIVI GRANITES, SOUTH-GREENLAND - HYDROTHERMAL ALTERATION OF IGNEOUS LAYERING

A A  FINCH; R J  REAVY; T N  HARRISON; P E  BROWN

RAPAKIVI GRANITES, SOUTH-GREENLAND - HYDROTHERMAL ALTERATION OF IGNEOUS LAYERING

A A FINCH, R J REAVY, T N HARRISON, P E BROWN

Research output: Contribution to journal › Comment/debate › peer-review

Abstract

Igneous layering is developed in the Proterozoic rapakivi granite suite of South Greenland in an area on the south-easternmost coast of the island of Angnikitsoq. The layering at this locality is unusual in that it is defined by interstitial phases. We suggest that large-scale hydrothermal alteration has converted a fine-grained pyroxene cumulate, in which original cumulate pyroxenes occurred in the interstices between larger feldspars, to interstitial biotite and green amphibole.

Original language	English
Pages (from-to)	739-742
Number of pages	4
Journal	Journal of the Geological Society
Volume	147
Publication status	Published - Sept 1990

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title = "RAPAKIVI GRANITES, SOUTH-GREENLAND - HYDROTHERMAL ALTERATION OF IGNEOUS LAYERING",

abstract = "Igneous layering is developed in the Proterozoic rapakivi granite suite of South Greenland in an area on the south-easternmost coast of the island of Angnikitsoq. The layering at this locality is unusual in that it is defined by interstitial phases. We suggest that large-scale hydrothermal alteration has converted a fine-grained pyroxene cumulate, in which original cumulate pyroxenes occurred in the interstices between larger feldspars, to interstitial biotite and green amphibole.",

author = "FINCH, {A A} and REAVY, {R J} and HARRISON, {T N} and BROWN, {P E}",

year = "1990",

month = sep,

language = "English",

volume = "147",

pages = "739--742",

journal = "Journal of the Geological Society",

issn = "0016-7649",

publisher = "GEOLOGICAL SOC PUBL HOUSE",

}

TY - JOUR

T1 - RAPAKIVI GRANITES, SOUTH-GREENLAND - HYDROTHERMAL ALTERATION OF IGNEOUS LAYERING

AU - FINCH, A A

AU - REAVY, R J

AU - HARRISON, T N

AU - BROWN, P E

PY - 1990/9

Y1 - 1990/9

N2 - Igneous layering is developed in the Proterozoic rapakivi granite suite of South Greenland in an area on the south-easternmost coast of the island of Angnikitsoq. The layering at this locality is unusual in that it is defined by interstitial phases. We suggest that large-scale hydrothermal alteration has converted a fine-grained pyroxene cumulate, in which original cumulate pyroxenes occurred in the interstices between larger feldspars, to interstitial biotite and green amphibole.

AB - Igneous layering is developed in the Proterozoic rapakivi granite suite of South Greenland in an area on the south-easternmost coast of the island of Angnikitsoq. The layering at this locality is unusual in that it is defined by interstitial phases. We suggest that large-scale hydrothermal alteration has converted a fine-grained pyroxene cumulate, in which original cumulate pyroxenes occurred in the interstices between larger feldspars, to interstitial biotite and green amphibole.

M3 - Comment/debate

SN - 0016-7649

VL - 147

SP - 739

EP - 742

JO - Journal of the Geological Society

JF - Journal of the Geological Society

ER -

RAPAKIVI GRANITES, SOUTH-GREENLAND - HYDROTHERMAL ALTERATION OF IGNEOUS LAYERING

Abstract

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