Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Brockman Dyke, Marble Bar, East Pilbara Shire, Western Australia, Australia

Oldest recorded age at locality: 3293
Youngest recorded age at locality: 1600

mindat Locality ID: 251002
mindat URL: http://www.mindat.org/loc-251002.html

Tectonic Settings:

Total number of sublocalities beneath "Brockman Dyke, Marble Bar, East Pilbara Shire, Western Australia, Australia": 0
Total number of bottom-level sublocalities: 0

Latitude: 21°29'20"S
Longitude: 119°57'9"E
Decimal Degree (lat, lon): -21.488888888889,119.9525

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Diamond	None	Spinel

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al C Mg O

Elements from minerals reported directly at this locality: Al C Mg O

Structural Groups for minerals in this locality:
Diamond None Spinel

2 IMA Minerals at location:

Diamond ()*	Spinel ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Diamond ()*	Diamond	C	2500	1600	0		697
Spinel ()*	Spinel	MgAl₂O₄	2500	1600	0		1934

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
EG97_873-00018	pegmatite
EG97_873-00019	pegmatite
EG97_873-00020	pegmatite
EG97_873-00021	pegmatite

5 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Sample Source	Age from other Locality	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
ree-00023	2500	1600	Lower Proterozoic					251002	Brockman Dyke, Marble Bar, East Pilbara Shire, Western Australia, Australia	Brockman	Orris and Grauch (2002)		USGSOFR02_189
EG97_873-00018	2860	2800	2830±30	Rb-Sr	muscovite	Yes	Muscovite	248962	Moolyella Pegmatite Field, Marble Bar, East Pilbara Shire, Western Australia, Australia	Moolyella	Sweetapple and Collins (2002)	10.2113/gsecongeo.97.4.873	EG97_873
EG97_873-00019	2855	2823	2839±16	Pb-Pb	cassiterite	Yes	Cassiterite	248962	Moolyella Pegmatite Field, Marble Bar, East Pilbara Shire, Western Australia, Australia	Moolyella	Sweetapple and Collins (2002)	10.2113/gsecongeo.97.4.873	EG97_873
EG97_873-00020	2921	2815	2868±53	Pb-Pb	cassiterite	Yes	Cassiterite	248962	Moolyella Pegmatite Field, Marble Bar, East Pilbara Shire, Western Australia, Australia	Moolyella	Sweetapple and Collins (2002)	10.2113/gsecongeo.97.4.873	EG97_873
EG97_873-00021	3293	2843	3068±225	Pb-Pb	apatite	Yes		248962	Moolyella Pegmatite Field, Marble Bar, East Pilbara Shire, Western Australia, Australia	Moolyella	Sweetapple and Collins (2002)	10.2113/gsecongeo.97.4.873	EG97_873

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...