Black Star glory holes hanging wall failure, September 1934

DESCRIPTION

Description10/5/34 a N-S crack was observed out in the Black Star Lode's hangingwall some 175ft. directly west from rim of No. 6 Glory Hole. Its length when 1st discovered was 100ft. 15/6/34 its length had increased to 155ft. This is referred to as No 1 Crack. On the latter day a 185ft. N-S crack developed 10ft. east of the first, overlapping its north half and extending northward another 120ft, giving a total inclusive length for both cracks of 275ft. This is referred to No. 2 Crack. At no place did the width of either crack exceed 1/2in.DateSeptember 1934RightsPublic DomainCollectionReginald O'BrienSubjectMiningMining SitesNatural World

LOCATION

PlaceMount Isa MinesGeolocation^[1]

IDENTIFIERS

KeywordBlack StarFailureHanging WallSeptemberTaxonomyLocation | Mount Isa MinesTopics | Mining

CONNECTIONS

OrganisationMount Isa Mines

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Black Star glory holes hanging wall failure, September 1934

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Black Star glory holes hanging wall failure, September 1934