Geology topics
Suzanne W. Nicholson
Publications and source records attributed to Suzanne W. Nicholson.
Geology of Keweenawan Supergroup Rocks near the Porcupine Mountains, Ontonagon and Gogebic Counties, Michigan
This field trip examines the geology of rocks of the Keweenawan Supergroup (1 .1 Ga) and related intrusive rocks of the Midcontinent rift system (MRS) in the western part of the northern peninsula of Michigan. The combination of stops includes all formations of the Keweenawan Supergroup in this region. Examination of all described localities requires more than a single day and participants are encouraged to use this guidebook on their own to supplement the localities that will be visited on our one-day trip. Because of uncertainties of weather, road conditions, and remaining snow pack in early May in this region of very heavy snowfall, the stops that we will visitwill not be known until the date of the trip. Stops are numbered in stratigraphic order, from oldest to youngest, not in the order in which they will be visited.
Sulfide inclusions within the B chromitite, Stillwater Complex, Montana
Explore the source record for details and available documents.
Maps showing geology, geochemistry, and mineral resources assessment of the Rough Mountain Roadless Area, Alleghany and Bath counties, Virginia
The Rough Mountain Roadless Area comprises about 9,300 acres of George Washington National Forest land in the Valley and Ridge province in west-central Virginia. The area, which is about 6 mi long and 2 mi wide, is in Bath and Alleghany Counties, about 3 mi south of Millboro Springs, Va. (Index Map). State Route 42 forms part of the western boundary of the area, the Cowpasture River forms part of the southern boundary and the Chesapeake and Ohio Railroad and Pads Creek form the eastern boundary. The northern boundary follows the crests of two small ridges that lead east and west from the main ridgeline of Rough Mountain.