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Knob Lick Mountain section: Intrusive contact of Precambrian granite with rhyolite in the St. Francois Mountains, Missouri

By
Eva B. Kisvarsanyi
Eva B. Kisvarsanyi
Missouri Geological Survey, Rolla, Missouri 65401
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Arthur W. Hebrank
Arthur W. Hebrank
Missouri Geological Survey, Rolla, Missouri 65401
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Published:
January 01, 1987

Abstract

Knob Lick Mountain, in the eastern part of the St.Francois Mountains, is about 9.5 mi ( 15.2 km) south of Farmington, in St.Francois County, Missouri (Wachita Mountain 7½-minute Quadrangle). Rising to agentle elevation of 1,333 ft (400 m) above sea level, Knob Lick Mountain may be reached by following Knob Lick Tower Road for 1.1 mi (1.75 km) west of its junction with U.S. 67, just south of the village of Knob Lick (Fig. la), to the parking lot by the lookout tower a top Knob Lick Mountain (NE¼NE¼SE¼, Sec.8, T.34N., R.6E.). A panoramic view of the St. Francois Mountains is afforded from the bald, 100ft (30 m) south of the lookout tower. The intrusive contact of granite with rhyolite is exposed in an abandoned granite quarry, marked on Figure la (SW¼NE¼NE¼, Sec.8, T.34N., R.6E.), about 2,000 ft (600m) northwest from the lookout tower. Access to the quarry is provided by the old ridge road; walk 2,000 ft (600 m) due northwest from the lookout tower on old ridge road, then 200 ft (60 m) due east through the woods to the quarry. Visit of this site involves about a 1.5-hour hike. The site is on public land.

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Contents

DNAG, Centennial Field Guides

North-Central Section of the Geological Society of America

Geological Society of America
Volume
3
ISBN electronic:
9780813754093
Publication date:
January 01, 1987

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