Jack Hills mine, Jack Hills, Nookawarra Station, Murchison Shire, Western Australia, Australiai

Regional Level Types
Jack Hills mine	Mine
Jack Hills	Group of Hills
Nookawarra Station	- not defined -
Murchison Shire	Shire
Western Australia	State
Australia	Country

The Jack Hills mine is an iron ore mine located 400 kilometres (250 mi) northeast of Geraldton and 140 kilometres (87 mi) northwest of Meekatharra in the Mid West region of Western Australia. Operations began at Jack Hills in November 2006, with the first shipment of ore made in February 2007. Mining was suspended in November 2012 and the project was placed on care and maintenance in June 2013. The Jack Hills mine is owned by Mitsubishi Development Pty Ltd, a wholly owned subsidiary of Mitsubishi Corporation.

Most of the iron ore mineralisation at the property occurs as magnetite and hematite. The mine is located in an Archaean-aged greenstone belt in the Murchison geological province. Mining was carried out at three related deposits - Jack Hills, Brindal and Detrital deposits.

Jack Hills is the main deposit containing banded iron formation (BIF). The Brindal deposit, located 3km south of it, contains massive hematite mineralisation.

The detrital deposits were discovered during the second phase of a $30m exploration programme in 2009. The mineralisation is accordingly classified into banded iron formation, massive iron mineralisation and detrital iron deposits.

The mine is estimated to contain 3.2 billion tons of mineral resources at an average grading of 32.3% Fe as per September 2010 estimates. The resources include 2.87 billion tons of BIF at a cut-off grade of 22% Fe, 235mt of massive iron mineralisation at a cut-off grade of less than 50% Fe and 118mt of detrital iron deposits at a cut-off grade of 22% Fe.

The reserves in 2012 were estimated to be 96.6 million tons (mt) of direct shipping ore (DSO) and 435mt of beneficiation feed ore (BFO).

Geochronology

Mineralization age: Mesoarchean : 3080 ± 20 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic Time				Rocks, Minerals and Events
Precambrian
	Archean
		Mesoarchean		ⓘ Banded iron formation 3080 ± 20 Ma

Fossils

This region is too big or complex to display the fossil list, try looking at smaller subregions.

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Jack_Hills_mine
Wikidata ID:	Q16968961

References