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in an otherwise relatively flat valley, surrounded by farmland. The peak of Mole Hill is approximately 1,893 feet (577 meters) above sea level.
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Tioga
Bentonite, but discovered that the rocks were actually a much younger age of approximately 47 million years, placing them in the
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Fullagar, Paul D.; Bottino, Michael L. (1969). "Tertiary
Felsite Intrusions in the Valley and Ridge Province, Virginia".
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outcropping at the crest of the hill is "dark greenish gray to grayish black, medium grained, and moderately
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Jonathan L. Tso; Ronald R. McDowell; Katharine Lee Avary; David L. Matchen & Gerald P. Wilkes (2004).
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271:. Commonwealth of Virginia, Dept. of Mines, Minerals, and Energy, Division of Mineral Resources.
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approximately 47 million years ago, making it one of the youngest volcanoes on the east coast of
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220:"Middle Eocene Igneous Rocks in the Valley and Ridge of Virginia and West Virginia"
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techniques to date rocks that they thought were temporally related to the
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Geology of the
Harrisonburg and Bridgewater quadrangles, Virginia
242:"Mole Hill Topo Map, Rockingham County VA (Bridgewater Area)"
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10.1130/0016-7606(1969)80[1853:TFIITV]2.0.CO;2
16:Hill and Extinct volcano in Harrisonburg, Virginia
265:Gathright, Thomas M; Frischmann, Peter S (1986).
60:. It is the eroded remnant of what was an active
88:Mole Hill is an isolated, rounded, tree-covered
323:"A Brief Geologic History Of Rockingham County"
143:in the area) was originally thought to be of
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139:The basalt at Mole Hill (and other igneous
372:Landforms of Rockingham County, Virginia
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292:Geological Society of America Bulletin
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113:basalt with abundant large pale green
151:. In 1969, Fullagar and Bottino used
31:View facing northwest from Swope Road
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124:." The basalt intrudes through the
23:View facing east from Mole Hill Road
397:Volcanic plugs of the United States
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392:Cinder cones of the United States
147:age by relative age dating using
228:United States Geological Survey
38:is a rounded hill composed of
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325:. James Madison University.
149:cross-cutting relationships
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68:. It is located west of
117:and minor yellow-brown
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377:Volcanoes of Virginia
348:38.44861°N 78.95333°W
321:Sherwood, W. Cullen.
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131:of carbonate rocks.
46:, formed during the
353:38.44861; -78.95333
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160:radiometric dating
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382:Hills of Virginia
129:Beekmantown Group
78:Rockingham County
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387:Eocene volcanoes
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249:. Retrieved
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174:Trimble Knob
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70:Harrisonburg
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298:(9): 1853.
184:rocks near
122:phenocrysts
105:. It is an
103:porphyritic
84:Description
366:Categories
339:78°57′12″W
336:38°26′55″N
251:2018-06-11
200:References
126:Ordovician
277:758391284
145:Paleozoic
91:monadnock
55:Paleogene
36:Mole Hill
246:TopoZone
164:Devonian
115:pyroxene
74:Virginia
182:igneous
119:olivine
107:olivine
62:volcano
53:of the
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168:Eocene
111:spinel
99:basalt
58:period
48:Eocene
40:basalt
157:Rb-Sr
141:dikes
76:, in
51:epoch
273:OCLC
155:and
153:K-Ar
97:The
42:, a
300:doi
188:in
135:Age
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296:80
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109:-
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