Layered Mafic Intrusions

Bushveld Complex 

SAMPLE PREFIX

ROCK TYPES

LOCALITIES

DESCRIPTION

Bx, B85, B90, DCx, TL85, S85, Vx, PS90, B04, B06, B07

Pyroxenite, chromitite, norite, anorthosite, gabbro, leuconorite, harzburgite, magnetite, peridotite, dunite, granophyre, troctolite

Atok Mine, Benfontein Sill, Brakspruit Shaft, Bultfontein, Driekop, Dutoitspan, Jagersfontein, Merensky Reef, Rustenberg, Vlakfontein, Townlands Shaft, Transvall  

Samples from various layers of the Bushveld intrusion including UG-1 and UG-2 chromite layers

4U9E7, 5-24, MP24D2, B93

Drill core (various)

Merensky Reef

1" core across the Merensky Reef at the Atok section of the Bushveld

Great Dike, Zimbabwe

SAMPLE PREFIX

ROCK TYPES

LOCALITIES

DESCRIPTION

Wx, GD90, Px, Qx, Tx, Vx

Augitite, bronzitite, gabbro, norite, pegmatoid, pyroxenite

Wedza complex, Mimosa mine

Various rocks from the Great Dike, Zimbabwe

HD006, HD0023, HD0057, W98

Drill core (various)

Wedza complex

1" core through the Great Dike

Stillwater Complex, Montana

SAMPLE PREFIX

ROCK TYPES

LOCALITIES

DESCRIPTION

CZA, STx

Anorthosite, dunite, harzburgite, gabbro, granophyre, norite, troctolite

Mouat Mine, Picket Pin, various others

Mafic cumulates from Stillwater Complex, MO

Noril'sk, Russia

SAMPLE PREFIX

ROCK TYPES

LOCALITIES

DESCRIPTION

CZA

Basalt, dolerite, gabbro, meymechite, sulfide ores, tuff

Oktyabrsky Mine, Taymyrsky Mine, Komsomolsky Mine, Glubosky Mine, Medvezhy Creek, Tunuska Sineclise, Kureyka Area, Severnaya River Basin, others

Various samples, core pieces, powders and thin sections from the intrusive and extrusive suites of the Norl'sk Intrusion, donated by Gerald Czamanske and Valeri Fedorenko in 1996.

Koitelainen Complex, Finland

SAMPLE PREFIX

ROCK TYPES

LOCALITIES

DESCRIPTION

F-89

Basalt, dunite, gabbro, lherzolite, pyroxenite, schist

Koitelainen

33 samples from the Koitelainen Intrusion and Keivitsa-Satovaara Complex, collected by Ed Mathez in 1989

Skaergaard, Greenland

SAMPLE PREFIX

ROCK TYPES

LOCALITIES

DESCRIPTION

SK

Basalt, dunite, gabbro, anorthosite, granophyre, syenite, diorite, peridotite

Nunatak, Uttentals Plateau, Mellemo, Kraemer’s Island, Skaergaard Peninsula, Invarmiut, Basistoppen

Hundreds of samples, core pieces and thin sections from the Skaergaard Intrusion, donated by Alexander McBirney and collected from various localities within the formation from 1971-1990.