Krasnaya Gorka

Porphyry copper prospect in Khabarovskiy kray, Russian Federation

Names and other identifiers

Alternate names Amur Projects
Tract name Pacific Margin (142pCu8514)
Site status prospect

Geographic location

Country Russian Federation
State or province Khabarovskiy kray
Geographic location 140.158588, 53.375804
Geologic map unit 140.158588, 53.375804
Nearby data

Geologic information

Deposit type Porphyry copper
Age determination method Geologic inference
Age range Late Jurassic–Cretaceous–Paleogene
Age reference geologic inference
Minerals hematite, limonite
Associated rocks dacitic body, biotite granodiorite, dacitic lava and tuff, dacitic volcanic breccia, granodiorite
Tectonic setting mixed
Stratigraphic age Late Jurassic–Cretaceous–Paleogene

Commodity and development information

Development status Occurrence
Major commodities Cu
Minor commodities Mo, Au
Gold-Moly ratio -9999

Reference information

Comments Copper/molybdenum porphyry targets; previous field work suggests supergene leaching may be fairly thorough and deep supporting potential for a zone of significant secondary enrichment. A second soil Cu anomaly ~1.5 km long occurs in an area of unaltered bedrock lower on the flanks of the Krasnaya Gorka Hill, and lacks any other associated metals, suggesting it is likely a supergene-displaced anomaly from a source located up-slope. Also, presence of local hematite boxwork after sulfides, and the lack of any preserved sulfides on the target hill, suggest supergene leaching may be fairly thorough and deep, supporting potential for zone of significant secondary enrichment. A central quartz-limonite stockwork contains classic porphyry-style quartz-limonite veining. It is associated with a somewhat displaced soil Cu anomaly (>200 ppm) and a spatially-coincident rock-chip and soil Mo anomaly.
Study area name Northeast Asia
References Fortress Minerals Corp. (2009)
Site reference Mihalasky, Ludington, Alexeiev, and others (2015)