Difference between revisions of "Jones Mountains"

The '''Jones Mountains''' are an isolated group of east-trending bedrock highland extending for 43 km (27 mi) on the [[Eights Coast]] in [[Ellsworth Land]] about 80 km (50 mi) south of [[Dustin Island]] in [[Westarctica]].  They consist of a series of rounded peaks of a few thousand feet in relief. The rocks can be divided into a "basement" complex which is mainly Mezozoic and an overlying "volcanic" series pf rocks.  The mountains' roughly 500 meters of upper Tertiary volcanics unconformably overlie and truncate a basement complex composed of coarsely crystalline pink granite , mafic, and felsic dike rocks, and bedded volcanics.