WebNamed Birch Creek Schist abandoned because it has doubtful value as a rock-stratigraphic unit. Brief history of usage included. Authors say Spurr (1898) considered type area to be headwaters of Birch Creek about 80 mi northeast of Fairbanks, AK. This report describes metamorphic complex in two groups: rocks of Fairbanks-Big Delta region and ... WebBirch Creek. Birch Creek, Ikheenjik River, flows from the windswept ridges and alpine …

Geolex — BirchCreek publications - USGS

WebLittle Moose Creek mostly flows through Birch Creek Schist (Bundtzen, 1981). In the headwaters of Little Moose Creek, across the divide from an unnamed north fork tributary of the North Fork of Canyon Creek, a half-mile- wide band of siliceous and graphitic schist of the Keevy Peak Formation is downfaulted into the Birch Creek Schist (Hawley and … WebPrecambrian Birch Creek Schist. Mean annual precipitation in the Birch Creek region is ap-proximately 260 mm with 60 to 70% of that falling as rain between June and September. June frequently can be quite dry. Mean annual temperature is - 90C and discontinuous permafrost occurs. By 1896 placer gold mining was well underway in the Birch Creek ... green day brat lyrics

Schists of the Central Alaska Range - USGS

WebA former Au mine located in the S½ (estimated) sec. 23, T6S, R35E, MDM, 3.0 km (1.8 miles) S of Index Hill (coordinates of record), along the North Fork Birch Creek (1¾ miles S of Roberts Ranch, on the divide between Wyman Creek and Birch Creek), on National Forest wilderness land (Birch Creek Roadless Area Review & Evaluation (RARE II) Area). WebFeb 13, 2024 · The Birch Creek schist underlies a large part of the area between the … WebBirch Creek. Just north of Fairbanks, Alaska, flowing out of the low mountains and rolling … green day brain stew tab