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An integrated geological, geochemical, and geophysical investigation of uranium metallogenesis in selected granitic plutons of the Miramichi Anticlinorium, New Brunswick

Technical Report:

Abstract

Integrated geological, geochemical, and geophysical data for the post-tectonic granitic rocks of the North Pole, Burnthill, Dungarvon, Trout Brook, and Rocky Brook plutons and surrounding areas were examined to assess their potential for uranium mineralization. Geological, geochemical, and geophysical criteria that are thought to be useful guides for uranium exploration were also established for the host granites. The granitic plutons were emplaced discordantly, late in the tectonomagmatic sequence and at shallow depths within the metasedimentary rocks of the Miramichi Anticlinorium. Geochemically, the host granites are highly evolved (Si0{sub 2} > 75 wt. %), peraluminous and have strong similarities with ilmenite-series `S-type` and `A-type` granitoids. Uranium occurrences are spatially and perhaps temporally associated with late-phase differentiates of the plutons where elevated levels of other lithophile elements such as Sn, W, Mo, and F were also detected. Geophysically, the granitic plutons are associated with distinctively high aeroradiometric eU, eTh, and K anomalies that coincide with strong negative Bouguer anomalies and low magnetic values. Conceptual models involving magmatic and hydrothermal processes have been adopted to explain the concentration of uranium and associated metals in the granitic plutons.
Publication Date:
Dec 31, 1992
Product Type:
Technical Report
Report Number:
GSCAN-P-91-15
Reference Number:
SCA: 050100; PA: AIX-24:005638; SN: 93000930783
Resource Relation:
Other Information: PBD: 1992
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; URANIUM MINERALS; MINERALIZATION; GEOLOGIC FORMATIONS; GRANITES; NEW BRUNSWICK; 050100; RESERVES, EXPLORATION, AND MINING
OSTI ID:
10118757
Research Organizations:
Geological Survey of Canada, Ottawa, ON (Canada)
Country of Origin:
Canada
Language:
English
Other Identifying Numbers:
Other: ON: DE93611321; ISBN 0-660-14435-2; TRN: CA9201006005638
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
[146] p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Hassan, H H, and McAllister, A L. An integrated geological, geochemical, and geophysical investigation of uranium metallogenesis in selected granitic plutons of the Miramichi Anticlinorium, New Brunswick. Canada: N. p., 1992. Web.
Hassan, H H, & McAllister, A L. An integrated geological, geochemical, and geophysical investigation of uranium metallogenesis in selected granitic plutons of the Miramichi Anticlinorium, New Brunswick. Canada.
Hassan, H H, and McAllister, A L. 1992. "An integrated geological, geochemical, and geophysical investigation of uranium metallogenesis in selected granitic plutons of the Miramichi Anticlinorium, New Brunswick." Canada.
@misc{etde_10118757,
title = {An integrated geological, geochemical, and geophysical investigation of uranium metallogenesis in selected granitic plutons of the Miramichi Anticlinorium, New Brunswick}
author = {Hassan, H H, and McAllister, A L}
abstractNote = {Integrated geological, geochemical, and geophysical data for the post-tectonic granitic rocks of the North Pole, Burnthill, Dungarvon, Trout Brook, and Rocky Brook plutons and surrounding areas were examined to assess their potential for uranium mineralization. Geological, geochemical, and geophysical criteria that are thought to be useful guides for uranium exploration were also established for the host granites. The granitic plutons were emplaced discordantly, late in the tectonomagmatic sequence and at shallow depths within the metasedimentary rocks of the Miramichi Anticlinorium. Geochemically, the host granites are highly evolved (Si0{sub 2} > 75 wt. %), peraluminous and have strong similarities with ilmenite-series `S-type` and `A-type` granitoids. Uranium occurrences are spatially and perhaps temporally associated with late-phase differentiates of the plutons where elevated levels of other lithophile elements such as Sn, W, Mo, and F were also detected. Geophysically, the granitic plutons are associated with distinctively high aeroradiometric eU, eTh, and K anomalies that coincide with strong negative Bouguer anomalies and low magnetic values. Conceptual models involving magmatic and hydrothermal processes have been adopted to explain the concentration of uranium and associated metals in the granitic plutons.}
place = {Canada}
year = {1992}
month = {Dec}
}