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Find the blue line labeled “Glacial Margin” which goes from the northeast to the southwest of the state. This line represents the farthest advance of the glaciers which occupied Ohio during the last ice age (apprximately 20,000 years ago). Generally, are the rocks exposed north of the Glacial Margin are younger or older than the rocks exposed south of the glacial margin?

Find the blue line labeled “Glacial Margin” which goes from the northeast to the southwest of the state. This line represents the farthest advance of the glaciers which occupied Ohio during the last ice age (apprximately 20,000 years ago). Generally, are the rocks exposed north of the Glacial Margin are younger or older than the rocks exposed south of the glacial margin?

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Find the blue line labeled “Glacial Margin” which goes from the northeast to the southwest of the state. This line represents the farthest advance of the glaciers which occupied Ohio during the last ice age (apprximately 20,000 years ago). Generally, are the rocks exposed north of the Glacial Margin are younger or older than the rocks exposed south of the glacial margin?

STATE OF OHIO DEPARTMENT OF NATURAL RESOURCES DIVISION OF GEOLOGICAL SURVEY BEDROCK GEOLOGIC MAP OF OHIO ASHTABULA WWLLIAMS FULTON LUCAS LAKE GEAUGAT OTTAWA WOOD HENRY TRUMBULL CUYAHOGA SANDUSKY DEFIANCE ERIE LORAIN PORTAGE PAULDING HURON MEDINA SUMMIT SENECA PUTNAM HANCOCK MAHONING VAN WERT YANDOT CRAWFORD RICHLAND ASHLAND WAYNE ALLEN STARK COLUMBIANA HARDIN Glacial Margin MERCER CARROLL AUGLAIZE NARION HOLMES МОBROW TUSCARAWAS LOGAN KNOX SHELBY UNION JEFFERSON ACOSHOCTON HARRISON DELAWARE DARKE CHAMPAIGN LICKING MIAMI GUERNSEY MUSKINGUM BELMONT FRANKLIN MADISON CLARK PREBLE FAIRFIELD PERRY MONTGOMERY NOBLE MO GREENE PICKAWAY MORGAN FAYETTE WARREN HOCKING WASFLINGTON BUTLER CLINTON ROSS ATHENS HIGHLAND VINTON Key Quaternary (cross section only) HAMILTON CLERMONT PIKE MEIGS |JACKSON Permian-Pennsylvanian Serpent Mound Impact Structure BROWN ADAMS GALLIA Pennsylvanian SCIOTO Mississippian Serpent Mound Impact Structure Devonian LAWRENCE Silurian Ordovician ADAMS Ordovician-Cambrian (cross section only) HIGHLAND 10 20 30 40 miles Neoproterozoic (cross section only) 10 20 30 40 50 kilometers Mesoproterozoic (cross section only) Fault 1 mi BELLEFONTAINE Glacial Margin А MICHIGAN BASIN OUTLIER APPALACHIAN BASIN A' GRANITE-RHYOLITE PROVINCE EAST CONTINENT RIFT BASIN GRENVILLE PROVINCE Recommended citation: Ohio Division of Geological Survey, 2006, Bedrock geologic map of Ohio: Ohio Department of Natural Resources, Division of Geological Survey Map BG-1, generalized page-size version with text, 2 p., scale 1:2,000,000. PIKE Bend in section
Transcribed Image Text:STATE OF OHIO DEPARTMENT OF NATURAL RESOURCES DIVISION OF GEOLOGICAL SURVEY BEDROCK GEOLOGIC MAP OF OHIO ASHTABULA WWLLIAMS FULTON LUCAS LAKE GEAUGAT OTTAWA WOOD HENRY TRUMBULL CUYAHOGA SANDUSKY DEFIANCE ERIE LORAIN PORTAGE PAULDING HURON MEDINA SUMMIT SENECA PUTNAM HANCOCK MAHONING VAN WERT YANDOT CRAWFORD RICHLAND ASHLAND WAYNE ALLEN STARK COLUMBIANA HARDIN Glacial Margin MERCER CARROLL AUGLAIZE NARION HOLMES МОBROW TUSCARAWAS LOGAN KNOX SHELBY UNION JEFFERSON ACOSHOCTON HARRISON DELAWARE DARKE CHAMPAIGN LICKING MIAMI GUERNSEY MUSKINGUM BELMONT FRANKLIN MADISON CLARK PREBLE FAIRFIELD PERRY MONTGOMERY NOBLE MO GREENE PICKAWAY MORGAN FAYETTE WARREN HOCKING WASFLINGTON BUTLER CLINTON ROSS ATHENS HIGHLAND VINTON Key Quaternary (cross section only) HAMILTON CLERMONT PIKE MEIGS |JACKSON Permian-Pennsylvanian Serpent Mound Impact Structure BROWN ADAMS GALLIA Pennsylvanian SCIOTO Mississippian Serpent Mound Impact Structure Devonian LAWRENCE Silurian Ordovician ADAMS Ordovician-Cambrian (cross section only) HIGHLAND 10 20 30 40 miles Neoproterozoic (cross section only) 10 20 30 40 50 kilometers Mesoproterozoic (cross section only) Fault 1 mi BELLEFONTAINE Glacial Margin А MICHIGAN BASIN OUTLIER APPALACHIAN BASIN A' GRANITE-RHYOLITE PROVINCE EAST CONTINENT RIFT BASIN GRENVILLE PROVINCE Recommended citation: Ohio Division of Geological Survey, 2006, Bedrock geologic map of Ohio: Ohio Department of Natural Resources, Division of Geological Survey Map BG-1, generalized page-size version with text, 2 p., scale 1:2,000,000. PIKE Bend in section
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