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? **Bedrock Geologic Map of Ohio**The Bedrock Geologic Map of Ohio, published by the Ohio Department of Natural Resources, Division of Geological Survey, illustrates the distribution and types of various geologic formations found beneath the surface of Ohio.**Key Features of the Map:**- **Color-coded Geologic Units:** - **Quaternary (yellow, cross section only)** - **Permian-Pennsylvanian (orange)** - **Pennsylvanian (light blue)** - **Mississippian (green)** - **Devonian (orange-brown)** - **Silurian (blue)** - **Ordovician (pink)** - **Ordovician-Cambrian (cross section only, dark pink)** - **Neoproterozoic (brown, cross section only)** - **Mesoproterozoic (purple, cross section only)**- **Important Geologic Structures:** - **Serpent Mound Impact Structure:** Highlighted in a detailed inset located in the southeastern part of the map, this structure shows a circular geologic feature with varying rock distribution.- **Fault Lines:** The map includes indicated fault lines, providing insight into areas of tectonic activity.- **Cross-sectional Diagram:** - The bottom section of the map features a cross-section illustration from the Michigan Basin to the Appalachian Basin. This diagram provides a visual understanding of the layers beneath the earth’s surface in Ohio, showcasing: - Granite-Rhyolite - East Continent Rift Basin - Grenville Province - This cross-section helps illustrate the depth and composition of different rock units across Ohio.- **Glacial Margin:** The map indicates areas affected by glacial activity in Ohio.The map also contains a scale bar (in miles and kilometers) for distance measurement and the recommended citation for referencing this geological survey. This comprehensive map serves as an essential resource for understanding the geological composition of Ohio, offering insights into the state's subsurface geology, structure, and history.

In the north, the glacial margin is homogenous and is composed almost entirely of Pennsylvanian…

Answered: Find the blue line labeled “Glacial…

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?