Kurravaara Conglomerate

Kurravaara conglomerate (Swedish: Kurravaarakonglomeratet) is a rock unit of polymict conglomerate found in northernmost Sweden.^[1] It rest confomably on top of greenstones that were originally basaltic lavas and tuff.^[1]^[2] In one locations both rock units interdigitate.^[1] The conglomerate has boulders of porphyritic trachyandesite, iron-apatite oxide and those that are a blend of both rock types. Greenstones are also found as boulders.^[1] In some locations the unit is poor in boulders and is made mostly of metatuff.^[1] It is overlain by the Hopukka Formation, but no clear contact exists as rock units grade into each other.^[2]

References

↑ ^1.0 ^1.1 ^1.2 ^1.3 ^1.4 Offerberg, Jan (1967) (in Swedish). Beskrivning till berggrundskartbladen Kiruna NV, NO, SV, SO. Stockholm: Sveriges Geologiska Undersökning. pp. 34-36.
↑ ^2.0 ^2.1 Andersson, J.B., Bauer, T.E., & Martinsson, O. (2021). Structural Evolution of the Central Kiruna Area, Northern Norrbotten, Sweden: Implications on the Geologic Setting Generating Iron Oxide-Apatite and Epigenetic Iron and Copper Sulfides. Economic Geology.

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[Offerberg1967-1] 1.0 ^1.1 ^1.2 ^1.3 ^1.4 Offerberg, Jan (1967) (in Swedish). Beskrivning till berggrundskartbladen Kiruna NV, NO, SV, SO. Stockholm: Sveriges Geologiska Undersökning. pp. 34-36.

[anderssonetal2021-2] 2.0 ^2.1 Andersson, J.B., Bauer, T.E., & Martinsson, O. (2021). Structural Evolution of the Central Kiruna Area, Northern Norrbotten, Sweden: Implications on the Geologic Setting Generating Iron Oxide-Apatite and Epigenetic Iron and Copper Sulfides. Economic Geology.

Kurravaara Conglomerate

See also

References