Gold mineralisation in Precambrian supracrustal rocks on southern Nuussuaq, central West Greenland: 1991 results

Bjørn Thomassen; Tapani Tukiainen

doi:10.22008/gpub/21830

Gold mineralisation in Precambrian supracrustal rocks on southern Nuussuaq, central West Greenland: 1991 results

Bjørn Thomassen
, Tapani Tukiainen

Research output: Book/Report › Report (publicly available)

Abstract

Gold mineralisation was discovered 1991 in Precambrian supracrustal rocks near the settlement Saqqaq on southern Nuussuaq. The supracrustal sequence comprises a lower, ultramafic to mafic volcanic unit and an upper, predominantly clastic unit. A 3-4 m wide, rusty weathering metachert horizon of exhalative origin occurs at the transition between the volcanic and clastic units. This horizon contains disseminated pyrrhotite, pyrite, arsenopyrite and gold grains up to 20 microns in size, and chip samples collected at five localities over a strike length of 1.6 km average 1 ppm Au. The supracrustal unit thus has a potential for sedimentary-exhalative-derived gold deposits and constitutes a new exploration target in the Disko Bugt area.

Original language	English
Place of Publication	Copenhagen
Publisher	GGU
Number of pages	31
DOIs	https://doi.org/10.22008/gpub/21830
Publication status	Published - Mar 1992

Publication series

Series	Open File Series Grønlands Geologiske Undersøgelse
Number	3
Volume	92
ISSN	0903-7322

Keywords

Greenland
central West Greenland

Programme Area

Programme Area 1: Data

Access to Document

10.22008/gpub/21830Licence: Unspecified

https://data.geus.dk/pure-pdf/21830_GGU_Open_File_Report_92-3.pdfLicence: Unspecified

Cite this

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title = "Gold mineralisation in Precambrian supracrustal rocks on southern Nuussuaq, central West Greenland: 1991 results",

abstract = "Gold mineralisation was discovered 1991 in Precambrian supracrustal rocks near the settlement Saqqaq on southern Nuussuaq. The supracrustal sequence comprises a lower, ultramafic to mafic volcanic unit and an upper, predominantly clastic unit. A 3-4 m wide, rusty weathering metachert horizon of exhalative origin occurs at the transition between the volcanic and clastic units. This horizon contains disseminated pyrrhotite, pyrite, arsenopyrite and gold grains up to 20 microns in size, and chip samples collected at five localities over a strike length of 1.6 km average 1 ppm Au. The supracrustal unit thus has a potential for sedimentary-exhalative-derived gold deposits and constitutes a new exploration target in the Disko Bugt area.",

keywords = "Greenland, central West Greenland, Greenland, central West Greenland",

author = "Bj{\o}rn Thomassen and Tapani Tukiainen",

year = "1992",

month = mar,

doi = "10.22008/gpub/21830",

language = "English",

series = "Open File Series Gr{\o}nlands Geologiske Unders{\o}gelse",

number = "3",

publisher = "GGU",

}

TY - BOOK

T1 - Gold mineralisation in Precambrian supracrustal rocks on southern Nuussuaq, central West Greenland: 1991 results

AU - Thomassen, Bjørn

AU - Tukiainen, Tapani

PY - 1992/3

Y1 - 1992/3

N2 - Gold mineralisation was discovered 1991 in Precambrian supracrustal rocks near the settlement Saqqaq on southern Nuussuaq. The supracrustal sequence comprises a lower, ultramafic to mafic volcanic unit and an upper, predominantly clastic unit. A 3-4 m wide, rusty weathering metachert horizon of exhalative origin occurs at the transition between the volcanic and clastic units. This horizon contains disseminated pyrrhotite, pyrite, arsenopyrite and gold grains up to 20 microns in size, and chip samples collected at five localities over a strike length of 1.6 km average 1 ppm Au. The supracrustal unit thus has a potential for sedimentary-exhalative-derived gold deposits and constitutes a new exploration target in the Disko Bugt area.

AB - Gold mineralisation was discovered 1991 in Precambrian supracrustal rocks near the settlement Saqqaq on southern Nuussuaq. The supracrustal sequence comprises a lower, ultramafic to mafic volcanic unit and an upper, predominantly clastic unit. A 3-4 m wide, rusty weathering metachert horizon of exhalative origin occurs at the transition between the volcanic and clastic units. This horizon contains disseminated pyrrhotite, pyrite, arsenopyrite and gold grains up to 20 microns in size, and chip samples collected at five localities over a strike length of 1.6 km average 1 ppm Au. The supracrustal unit thus has a potential for sedimentary-exhalative-derived gold deposits and constitutes a new exploration target in the Disko Bugt area.

KW - Greenland

KW - central West Greenland

KW - Greenland

KW - central West Greenland

U2 - 10.22008/gpub/21830

DO - 10.22008/gpub/21830

M3 - Report (publicly available)

T3 - Open File Series Grønlands Geologiske Undersøgelse

BT - Gold mineralisation in Precambrian supracrustal rocks on southern Nuussuaq, central West Greenland: 1991 results

PB - GGU

CY - Copenhagen

ER -

Gold mineralisation in Precambrian supracrustal rocks on southern Nuussuaq, central West Greenland: 1991 results

Abstract

Publication series

Keywords

Programme Area

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