Sequential basal faults in Devonian Dolomite, Nopah Range, Death Valley area, California
Wenk HR and Zenger DH. 1983. Sequential basal faults in Devonian Dolomite, Nopah Range, Death Valley area, California. Science. 222(4623):502-504
Dolomite crystals from the Lost Burro Formation (Devonian) in the Nopah Range, eastern California, display basal stacking diorder as evidenced by transmission electron microscopy. Satellites in electron diffraction patterns indicate that stacking of anions and cations is different from that in ideal dolomite. This example conforms to the model of basal defects proposed by Goldsmith and Graf in 1958 to explain nonstiochiometry in dolomite. This dolomite from the Nopah Range was formed by deep burial replacement of micritic limesotnne, and its peculiar superstructure is tentatively attribuuted to the late diagenetic conditions during replacement.
- Type
- Journal Article
- Authors
- Wenk, H; Zenger, D
- Units
- DEVA
- Keywords
- Carbonate Rocks, Carbonates, crystal structure, defects, Devonian, Diagenesis, Dolomite, dolomitization, Geology, Inyo County CA, late diagenesis, Limestone, Lost Burro Formation, micrite, Minerals, Sedimentary Petrology, superstructure, TEM (Transmission Electron Microscopy), Ultrastructure