# Costean

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{{Short description|Mining process}}
{{Use dmy dates|date=April 2022}}
{{verify|date=April 2024}}
'''Costeaning''' is the process by which miners seek to discover metallic [lode](/source/lode)s. It consists in sinking small pits through the superficial deposits to the solid rock, and then driving from one pit to another across the direction of the [vein](/source/vein_(geology)), in such manner as to cross all the veins between the two pits.

In the [Northern Territory](/source/Northern_Territory) of [Australia](/source/Australia), costeans are required to be excavated in a way which reduces disturbance to the environment.<ref>{{Cite web| title=Construction and Rehabilitation of Costeans and Bulk Sample Pits | url=https://nt.gov.au/__data/assets/pdf_file/0013/203332/aa7-006-construction-and-rehabilitation-of-costeans-and-bulk-sample-pits-advisory-note.pdf | archive-url=https://web.archive.org/web/20210924151731/https://nt.gov.au/__data/assets/pdf_file/0013/203332/aa7-006-construction-and-rehabilitation-of-costeans-and-bulk-sample-pits-advisory-note.pdf | archive-date=2021-09-24}}</ref>

== References ==
{{reflist}}

Category:Surface mining

{{Mining-stub}}

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