Geology Reports⌕ Search

Geology topics

C.A. Hickcox

Publications and source records attributed to C.A. Hickcox.

3 recordsLinked to original sources
USGS1953

Geology and coal deposits of Jarvis Creek coalfield, Alaska

The Jarvis Creek coal field lies on the north side of the Alaska Range between latitudes 63 ° 35' and 63 ° 45 N., and longitudes 145 ° 40' and 145 ° 50 W. It is 2 to 6 miles east of the Richardson Highway. The coal field is about 16 square miles in area, the major part of which is a rolling plateau that slopes gently northward and is bounded on the east, south and west, by bluffs facing Jarvis Creek, Ruby Creek and Delta River. The oldest rock is pre-Cambrian Birch Creek schist, which is largely quartz-sericite schist with many quartz veins, and is locally intruded by rhyolite dikes. it is overlain by the Tertiary coal-bearing formation. Quaternary deposits include gravel, till, solifluction debris, and wind-borne deposits.

Alaska↗
USGS1944

Quicksilver deposits in the Cinnabar Creek area, Georgetown and Akiak districts, southwestern Alaska

The Cinnabar Creek area includes the tract on the divide between the Aniak and Holitna Rivers, both north-flowing tributaries of the Kuskokwin River (see figs. 1 and. 2), in the southern parts of the Georgetown and Akiak districts, southwester Alaska, about 85 miles S. 25° W. of Georgetown. The area.(see fig. 3.) is chiefly one of steep, rock-crested hills and the average relief is _about 700 feet. Some of the uplands are gently rolling but are studded here and there with sharp outcrops. The hills are covered largely by moss but the lower reaches of the valleys within the area are forested with spruce. Small alders and willows, and locally rather large cottonwoods, predominate in the gulches near timberline, which is about 1,000 feet above sea level.

Alaska↗