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The age of the Mud Tank Carbonatite, Strangways Range, Northern Territory

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Created 20/01/2025

Updated 20/01/2025

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Dates of 732 ± 5 m.y. (U-Pb zircon) and 735 ± 75 m.y. (Rb-Sr total rock) define the crystallisation age, and possibly also the emplacement age, of the Mud Tank Carbonatite. Deformation structures in the carbonatite probably formed during resetting of Rb-Sr biotite ages at about 320 m.y. by reactivated fault movement. Feldspathic carbonatite apparently formed by country rock contamination. The Mud Tank Carbonatite differs markedly, both in age and initial Sr87/Sr86 ratio, from the ultrapotassic Mordor Igneous Complex 50 km to the south. The age of the carbonatite does not correspond to any known event in the Arunta Block.

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Title The age of the Mud Tank Carbonatite, Strangways Range, Northern Territory
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/3d913f76-01bc-48f7-96aa-e3a407679989
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[133.5, -24.0], [135.0, -24.0], [135.0, -22.5], [133.5, -22.5], [133.5, -24.0]]]}
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This dataset was originally found on data.gov.au "The age of the Mud Tank Carbonatite, Strangways Range, Northern Territory". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/the-age-of-the-mud-tank-carbonatite-strangways-range-northern-territory

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