The Tuscarora formation is a light-gray sandstone with quartz grains imbedded throughout it. Most exposed Tuscarora specimens were dark and weathered on the exterior but were light colored on the interior and comprised of fine to coarse grains. The Tuscarora formation is about two hundred meters thick. The Castenea formation is found in parts of the Tuscarora formation. It is typically observed as a dark brown-reddish layer binding a middle section of lighter brown fine grain well sorted sandstone. The Castenea is an average of fifty meters in thickness.
The Rose Hill formation is the thickest formation of surface bedrock in this area at about two hundred and fifty meters thick. This formation is a layer of shale ranging in color, mainly a …show more content…
Three sinclines and three anticlines run diagonally across the map from the south – west corner to the north – east corner of the map area. The first notable sincline is the Bloomsburg sincline. In the mapping area this sincline is the most northern of all the large scale structures. In the center of the sincline the surface geology is the Bloomsburg shale and on either side it is bordered by thin, fifty to one-hundred meter wide strips of Keefer sandstone. The Bloomsburg formations dips away from the center of the fold at about forty – five …show more content…
This formation appears to run directly parallel to the axis of the Tuscarora anticline and has dip angles between fifteen and thirty degrees. The next anticline creates a large ridge about fifteen hundred feet above sea level that runs for about four miles. This anticline ridge is created by the Tuscarora formation and plunges to the southwest. The formation dips at about twenty degrees to either side of the fold axis. South of the ridge comprised of Tuscarora sandstone is a sincline running almost parallel to the Tuscarora but seemingly dipping in the opposite direction; from south – west to north – east. This sincline exhibits a portion of the Bloomsburg shale enveloped on either side by Keefer sandstone. Last but not least, in the lower south – east corner of the map a small. Thin anticline runs in the same fashion as the aforementioned sincline just north of it. It is composed of a narrow band less than a hundred meters wide of Tuscarora sandstone surrounded on both sides by
The Rose Hill formation is the thickest formation of surface bedrock in this area at about two hundred and fifty meters thick. This formation is a layer of shale ranging in color, mainly a …show more content…
Three sinclines and three anticlines run diagonally across the map from the south – west corner to the north – east corner of the map area. The first notable sincline is the Bloomsburg sincline. In the mapping area this sincline is the most northern of all the large scale structures. In the center of the sincline the surface geology is the Bloomsburg shale and on either side it is bordered by thin, fifty to one-hundred meter wide strips of Keefer sandstone. The Bloomsburg formations dips away from the center of the fold at about forty – five …show more content…
This formation appears to run directly parallel to the axis of the Tuscarora anticline and has dip angles between fifteen and thirty degrees. The next anticline creates a large ridge about fifteen hundred feet above sea level that runs for about four miles. This anticline ridge is created by the Tuscarora formation and plunges to the southwest. The formation dips at about twenty degrees to either side of the fold axis. South of the ridge comprised of Tuscarora sandstone is a sincline running almost parallel to the Tuscarora but seemingly dipping in the opposite direction; from south – west to north – east. This sincline exhibits a portion of the Bloomsburg shale enveloped on either side by Keefer sandstone. Last but not least, in the lower south – east corner of the map a small. Thin anticline runs in the same fashion as the aforementioned sincline just north of it. It is composed of a narrow band less than a hundred meters wide of Tuscarora sandstone surrounded on both sides by