The Geology of the Argyle (AK1) Diamond Deposit,Western Australia

Simple item page
dc.contributor.authorRayner, Murray J.
dc.contributor.authorJaques, Alan
dc.contributor.authorBoxer, G. L.
dc.contributor.authorSmith, C. B.
dc.contributor.authorLorenz, Volker
dc.contributor.authorMoss, Stephen W.
dc.contributor.authorWebb, Kimberley
dc.contributor.authorFord, D.
dc.contributor.editorDavy, A. T.
dc.contributor.editorSmith, C. B.
dc.contributor.editorHelmstaedt, H.
dc.contributor.editorJaques, A. L.
dc.contributor.editorGurney, J. J.
dc.date.accessioned2019-12-04T04:04:00Z
dc.date.issued2018
dc.date.updated2019-11-25T08:02:05Z
dc.description.abstractThe Argyle (AK1) pipe in the Kimberley region of Western Australia is the world’s largest source of natural diamonds, and it has produced more than 835 million carats since mining began in 1983. The ~1.2 Ga olivine lamproite pipe lies within the Paleoproterozoic Halls Creek orogen at the southeastern margin of the Kimberley craton, and it was emplaced during a period of extension associated with large-scale, NNE-trending strikeslip faulting of the orogen. AK1 is composed of four coalesced, steep-sided diatremes aligned along an NNE-trending fault and tapering to narrow feeder zones at depth. The body is infilled by volcaniclastic olivine lamproite and cut by late olivine lamproite dikes. Two distinct groups of volcaniclastic rocks are present. The dominant type comprises mainly quartz-rich lapilli tuffs and coarse ash tuffs formed by numerous phreatomagmatic eruptions, when olivine lamproite magma was erupted through water-rich sands and silts of the Carr Boyd Group. In contrast, latestage olivine lamproite lapilli tuffs, devoid of accidental quartz grains, fill the center of the northern diatreme. Following emplacement, the body was tilted 30° to the north and extended north-south by the sinistral northnorthwest–south-southeast Gap fault system and east-northeast–west-southwest by the dextral Razor Ridge fault. The Razor Ridge fault offsets the most southerly diatreme (southern tail) from the main part of AK1. Reversal of structural offsets affecting AK1 reveals a geometry which closely resembles that of other ultramafic diatremes. Variations in diamond grade and quality within AK1 indicate that at least two distinct magmas with unique diamond contents have been emplaced at Argyle.en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.isbn978-1-629493-06-0en_AU
dc.identifier.issn1547-3112en_AU
dc.identifier.urihttp://hdl.handle.net/1885/187291
dc.language.isoen_AUen_AU
dc.publisherSociety of Economic Geologistsen_AU
dc.relation.ispartofGeoscience and Exploration of the Argyle, Bunder, Diavik, and Murowa Diamond Depositsen_AU
dc.relation.isversionof1st edition Edition
dc.rights© 2018 Society of Economic Geologists, Inc.en_AU
dc.sourceSpecial Publication Number 20en_AU
dc.titleThe Geology of the Argyle (AK1) Diamond Deposit,Western Australiaen_AU
dc.typeBook chapteren_AU
local.bibliographicCitation.lastpage117en_AU
local.bibliographicCitation.placeofpublicationUSA
local.bibliographicCitation.startpage89en_AU
local.contributor.affiliationRayner, Murray J., Argyle Diamondsen_AU
local.contributor.affiliationJaques, Alan, College of Science, ANUen_AU
local.contributor.affiliationBoxer, G. L., Consultant Geologisten_AU
local.contributor.affiliationSmith, C. B., School of Earth Sciences, University of Bristolen_AU
local.contributor.affiliationLorenz, Volker, University of Wurzburgen_AU
local.contributor.affiliationMoss, Stephen W., Mineral Services Canadaen_AU
local.contributor.affiliationWebb, Kimberley, Mineral Services Canadaen_AU
local.contributor.affiliationFord, D., Argyle Diamondsen_AU
local.contributor.authoremailu5005121@anu.edu.auen_AU
local.contributor.authoruidJaques, Alan, u5005121en_AU
local.description.embargo2037-12-31
local.description.notesImported from ARIESen_AU
local.description.refereedYes
local.identifier.absfor040307 - Ore Deposit Petrologyen_AU
local.identifier.absseo840199 - Mineral Exploration not elsewhere classifieden_AU
local.identifier.ariespublicationu5786633xPUB469en_AU
local.identifier.uidSubmittedByu5786633en_AU
local.publisher.urlhttps://www.segweb.orgen_AU
local.type.statusPublished Versionen_AU

Downloads

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
02_Rayner_The_Geology_of_the_Argyle_2018.pdf
Size:
65.78 MB
Format:
Adobe Portable Document Format
Download

Collections

ANU Research Publications

DSpace software copyright © 2002-2024 LYRASIS