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The Blowhole, Tocumwal, Denison Co., New South Wales, Australia

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Latitude & Longitude (WGS84): 35° 45' 31'' South , 145° 37' 19'' East
Latitude & Longitude (decimal): -35.75888,145.62205
Age:485.4 ± 1.9 Ma to present day
Geologic Time:Furongian : Ordovician to Quaternary
Reference for age:Hall, L.R., Whiting, J.W. (1957) Jerilderie - 4 mile Geological Series, Sheet I/55-14, Australian National Grid, Explanatory Notes No.7. Bureau of Mineral Resources, Geology and Geophysics, Department of National Development, Commonwealth of Australia.
Köppen climate type:Cfa : Humid subtropical climate


An outcrop of granite with a deep, apparently spring fed at times, gnamma (water hole or solution pit). Several small dimension stone quarries are located nearby. The granite is poorly described in the literature.


Mineral List


7 valid minerals.

Rock Types Recorded

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Alphabetical List Tree Diagram

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Silurian
419.2 - 443.8 Ma



ID: 773324
Tocumwal Granite

Age: Silurian (419.2 - 443.8 Ma)

Stratigraphic Name: Tocumwal Granite

Description: White often porphyritic biotite granite

Comments: igneous felsic intrusive; synthesis of multiple published descriptions

Lithology: Igneous felsic intrusive

Reference: Raymond, O.L., Liu, S., Gallagher, R., Zhang, W., Highet, L.M. Surface Geology of Australia 1:1 million scale dataset 2012 edition. Commonwealth of Australia (Geoscience Australia). [5]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

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Hall, L.R., Whiting, J.W. (1957) Jerilderie - 4 mile Geological Series, Sheet I/55-14, Australian National Grid, Explanatory Notes No.7. Bureau of Mineral Resources, Geology and Geophysics, Department of National Development, Commonwealth of Australia.

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