Back to Search Start Over

Age of host rocks at the Coles Hill uranium deposit, Pittsylvania county, Virginia, based on zircon U-Pb geochronology.

Authors :
Tappa M.J.
Aylor J.G.
Ayuso R.A.
Beard J.
Bodnar R.J.
Henika W.S.
Vazquez J.A.
Wooden J.L.
Tappa M.J.
Aylor J.G.
Ayuso R.A.
Beard J.
Bodnar R.J.
Henika W.S.
Vazquez J.A.
Wooden J.L.

Abstract

Determining whether the host rocks for uranium mineralisation at Coles Hill are part of the Martinsville Intrusive Complex or not is critical for developing a genetic model for the Coles Hill deposit and to identify future uranium exploration targets in the region, especially if it can be determined that the source of uranium is the meta-igneous host rocks. Even if these units are not the source of the uranium, they could provide a favourable environment for uranium deposition, owing to the abundance of reduced iron-bearing phases such as biotite, amphibole and pyroxene that can promote precipitation of uranium from oxygenated fluids. Here, new U-Pb zircon geochronology is presented that establishes the age of the mineralised and unmineralised Martinsville Intrusive Complex rocks (the felsic Leatherwood Granite and the mafic Rich Acres Formation) in the vicinity of the Coles Hill deposit.<br />Determining whether the host rocks for uranium mineralisation at Coles Hill are part of the Martinsville Intrusive Complex or not is critical for developing a genetic model for the Coles Hill deposit and to identify future uranium exploration targets in the region, especially if it can be determined that the source of uranium is the meta-igneous host rocks. Even if these units are not the source of the uranium, they could provide a favourable environment for uranium deposition, owing to the abundance of reduced iron-bearing phases such as biotite, amphibole and pyroxene that can promote precipitation of uranium from oxygenated fluids. Here, new U-Pb zircon geochronology is presented that establishes the age of the mineralised and unmineralised Martinsville Intrusive Complex rocks (the felsic Leatherwood Granite and the mafic Rich Acres Formation) in the vicinity of the Coles Hill deposit.

Details

Database :
OAIster
Notes :
und
Publication Type :
Electronic Resource
Accession number :
edsoai.on1309242138
Document Type :
Electronic Resource