1.2 Ga Mafic dyke near York, southwestern Yilgarn Craton, Western Australia

被引:0
|
作者
Pidgeon, RT [1 ]
Nemchin, AA
机构
[1] Curtin Univ Technol, Sch Appl Geol, Perth, WA 6845, Australia
[2] Curtin Univ Technol, Sch Appl Geol, Tecton Special Res Ctr, Perth, WA 6845, Australia
关键词
dykes; mesoproterozoic; SHRIMP; Yilgarn Craton; zircon;
D O I
暂无
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
A SHRIMP (207)Pb/(206)Pb zircon age of 1204+/-10 Ma is reported for an east-west-trending dolerite dyke from near York in the southwestern Yilgarn Craton, This age is identical within analytical uncertainty to previously reported ages of ca 1210 Ma for dykes from the central Wheatbelt and the Western and Eastern Goldfields. The consistency of the dyke ages and the wide areal extent of the dykes suggests that emplacement occurred as a single magmatic pulse at cc 12 10 Ma throughout the southwestern Yilgarn Craton. The similarities between the age of the dykes and the ages of late events in the Albany-Fraser Orogeny, and the approximate parallelism of the east-west-trending dykes to the margin of the orogen, raises the possibility that these events are related.
引用
收藏
页码:751 / 755
页数:5
相关论文
共 50 条
  • [31] Geochemical exploration for gold and nickel in the Yilgarn Craton, Western Australia - an introduction
    Butt, C.R.M.
    Scott, K.M.
    [J]. Geochemistry: Exploration, Environment, Analysis, 2001, 1 (03) : 179 - 182
  • [32] Structure of the Mick Adam gold deposit: Yilgarn Craton, Western Australia
    Warren, James
    Thebaud, Nicolas
    Micklethwaite, Steven
    [J]. MINERAL DEPOSIT RESEARCH FOR A HIGH-TECH WORLD, VOLS. 1-4, 2013, : 1209 - 1212
  • [33] Petrogenesis of Proterozoic alkaline ultramafic rocks in the Yilgarn Craton, Western Australia
    Choi, Eunjoo
    Fiorentini, Marco L.
    Giuliani, Andrea
    Foley, Stephen F.
    Maas, Roland
    Graham, Stuart
    [J]. GONDWANA RESEARCH, 2021, 93 : 197 - 217
  • [34] A new period of volcanogenic massive sulfide formation in the Yilgarn: a volcanological study of the ca 2.76 Ga Hollandaire VMS deposit, Yilgarn Craton, Western Australia
    Hayman, P. C.
    Hull, S. E.
    Cas, R. A. F.
    Summerhayes, E.
    Amelin, Y.
    Ivanic, T. J.
    Price, D.
    [J]. AUSTRALIAN JOURNAL OF EARTH SCIENCES, 2015, 62 (02) : 189 - 210
  • [35] EARLY PALEOZOIC BIOTITE RB-SR DATES IN THE YILGARN CRATON NEAR HARVEY, WESTERN-AUSTRALIA
    DELAETER, JR
    LIBBY, WG
    [J]. AUSTRALIAN JOURNAL OF EARTH SCIENCES, 1993, 40 (05) : 445 - 453
  • [36] Tsunami Deposits on a Paleoproterozoic Unconformity? The 2.2 Ga Yerrida Marine Transgression on the Northern Margin of the Yilgarn Craton, Western Australia
    Lascelles, Desmond E.
    Lowe, Ryan J.
    [J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING, 2021, 9 (02) : 1 - 19
  • [37] TIMING OF LATE ARCHEAN GRANULITE-FACIES METAMORPHISM IN THE SOUTHWESTERN YILGARN CRATON OF WESTERN-AUSTRALIA - EVIDENCE FROM U-PB AGES OF ZIRCONS FROM MAFIC GRANULITES
    NEMCHIN, AA
    PIDGEON, RT
    WILDE, SA
    [J]. PRECAMBRIAN RESEARCH, 1994, 68 (3-4) : 307 - 321
  • [38] RADIUM ISOTOPES IN SALINE SEEPAGES, SOUTHWESTERN YILGARN, WESTERN-AUSTRALIA
    DICKSON, BL
    [J]. GEOCHIMICA ET COSMOCHIMICA ACTA, 1985, 49 (02) : 361 - 368
  • [39] A primitive representative of the Parabathynellidae (Bathynellacea, Syncarida) from the Yilgarn Craton of Western Australia
    Cho, JL
    [J]. JOURNAL OF NATURAL HISTORY, 2005, 39 (39) : 3423 - 3433
  • [40] Metamorphic evolution of the central Southern Cross Province, Yilgarn Craton, Western Australia
    Dalstra, HJ
    Ridley, JR
    Bloem, EJM
    Groves, DI
    [J]. AUSTRALIAN JOURNAL OF EARTH SCIENCES, 1999, 46 (05) : 765 - 784