BH250-63
Title
BH250-63
Subject
Granodiorite
Description
Major Minerals: orthoclase, quartz, biotite
Minor Minerals: chlorite, zircon, titanite, hornblende, albite, epidote
BH250-63 is a granitic sample collected from Confusion Point, a geologically significant outcrop in northern Minnesota, situated within the Giants Range Batholith.
At Confusion Point, the exposure provides striking evidence of multiple phases of magmatic intrusion. Road cuts reveal a network of cross-cutting relationships between lighter-colored granitic bodies and darker amphibolite dikes or enclaves, highlighting a long history of successive intrusion, deformation, and recrystallization. These features make Confusion Point a classic location for studying Archean crustal evolution and the structural complexity of ancient continental lithosphere.
Minor Minerals: chlorite, zircon, titanite, hornblende, albite, epidote
BH250-63 is a granitic sample collected from Confusion Point, a geologically significant outcrop in northern Minnesota, situated within the Giants Range Batholith.
At Confusion Point, the exposure provides striking evidence of multiple phases of magmatic intrusion. Road cuts reveal a network of cross-cutting relationships between lighter-colored granitic bodies and darker amphibolite dikes or enclaves, highlighting a long history of successive intrusion, deformation, and recrystallization. These features make Confusion Point a classic location for studying Archean crustal evolution and the structural complexity of ancient continental lithosphere.
Coverage
Location: Confusion Hill, Minnesota, USA
GPS Coordinates: 47°34'41.31"N, 92°32'41.00"W
GPS Coordinates: 47°34'41.31"N, 92°32'41.00"W
Creator
Bereket Haileab
Source
From the rock collection of Bereket Haileab. Sample 63. Housed at Carleton College in Minnesota.
Type
Thin section
Relation
Collection
Citation
Bereket Haileab, “BH250-63,” BH250 Mineralogy Teaching Collection, accessed April 26, 2026, https://bereket-haileab.geology.sites.carleton.edu/items/show/73.