Mount Scott Granite
The rapakivi texture is due to depressurization of a h2o undersaturated magma during.
Mount scott granite. Mount scott granite occurrence mount scott wichita mountains comanche co oklahoma usa. But doing so maintains. It looks like a huge boulder pile but is actually well suited for climbing with slabs fissured walls and gritty faces. Many of the routes are covered with lichen.
The mount scott granite is the most extensively exposed wichita granite. The presence of rapakivi feldspar and of distinctive porphyritic texture of mount scott granite indicates a period of crystallization prior to final emplacement beneath an extensive penecontemporaneous rhyolite volcanic pile. Mount scott granite forms half of the outcrop area in eastern and central parts of wichita mountains. The granite intruded the gabbro as a sheet a few hundred feet thick.
The rock on mt. The road up mt. This contact can be traced northwest for several miles and dips to the south. Was emplaced as an intrusive sheet that must have had an areal extent of hundreds of square miles.
On accompanying geologic map mount scott is shown to be present in comanche kiowa jackson. The highest point in southwest oklahoma is the peak of our very own mount scott. This along with fragments of. Driving south from oklahoma city it is one of the first sightings that tell you granite pointe rv resort is less than 25 minutes away.
The dikes structure is unique in that partially melted deposit of mount scott granite is intruded next to one of the dikes indicating a high ambient temperature during its intrusion indicating that the diabase dike s intrusion occurred nearly immediately following the intrusion of the mount scott granite. Mount scott granite are lithodemic only i e they are mappable as separate units based on easily observed char acteristics. Final crystallization conditions are interpreted to have been 50 mpa at depths 1 4 km based on stratigraphic constraints. Trees grow only on the gabbro and the contact between the two rocks can be detected by the tree line.
Outcrops are found in an area of 25 to 35 miles. An occurrence s located on mount scott and area. Dark rounded alkali feldspars typically one centimeter or less in diameter. Scott is closed in fog and in snowy icy conditions.
A type sheet rapakivi granite in the wichita mountains.