Geology and Landforms of the Perth Region
Geology and Landforms of the Perth Region

Author: John Robert Gozzard

Publisher:

Published: 2007

Total Pages: 126

ISBN-13: 9781741680720

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"Stretching from the ocean to the eastern hills, the Perth Region has coastal landscapes, river-valley landscapes, and forested hilly landscapes that reflect the diverse geology beneath. This field guide covers some of the classic geological localities near Perth - for instance Cape Peron has preserved evidence for sea-level changes that have featured in scientific discussions for over 50 years. The guide describes the landscape and rocks and gives explanations on how they formed. Close-up photos and diagrams help the reader recognize and interpret the localities." - back cover.

Archean Rare-Metal Pegmatites in Zimbabwe and Western Australia
Archean Rare-Metal Pegmatites in Zimbabwe and Western Australia

Author: Thomas Dittrich

Publisher: Springer

Published: 2019-02-13

Total Pages: 134

ISBN-13: 3030109437

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Lithium-cesium-tantalum (LCT) pegmatites are important resources for rare metals. For Cs, only the LCT pegmatites with the zeolite group mineral pollucite at Bikita (Zimbabwe Craton) and Tanco (Superior Province Craton) are of commercial importance. Common characteristics of world-class LCT pegmatite deposits include their Meso- to Neoarchean age and geological setting within greenstone belt lithologies on Archean Cratons. This study presents the first coherent and comparative scientific investigation of five major LCT pegmatite systems from the Yilgarn, Pilbara and Zimbabwe Craton. For the evaluation of their Cs potential and of the genetic concepts of pollucite formation, the pegmatites from Wodgina, Londonderry, Mount Deans and Cattlin Creek were compared to the Bikita pollucite mineralization. The integration of the new data (e.g., geochronological and radiogenic isotope data) into the complex geological framework: 1) enhances our knowledge of the formation of LCT pegmatite systems, and 2) will contribute to the further exploration of additional world-class LCT pegmatite deposits, which 3) may host massive pollucite mineralisations.