Great Salt Lake brine chemistry database and reports - 1966 to 2006 (OFR-485) Media Type:CD The Grand Castle member is

The Grand Castle member is probably lower Paleocene in age

5' quadrangle covers a large part of Arches National Park and encompasses colorful bedrock strata ranging in age from Pennsylvanian Paradox Formation to Cretaceous Mancos Shale

and it is home to the Coral Pink Sand Dunes and Kodachrome Basin State Parks

enigmatic landforms are famous worldwide

Great Salt Lake brine chemistry database and reports - 1966 to 2006 (OFR-485) Media Type:CD The Grand Castle member isBy: J. W. Gwynn Prior to the construction of the solid rock fill railroad causeway across the central part of Great Salt Lake in 1959, the water was able to mix throughout the lake. Through this mixing, the salinity and chemistry were relatively constant both vertically and laterally. After the causeways completion in 1959, the main body of the lake was physically divided into a north arm and a south arm. As a result of this division, the north arm of