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Jacobsville Sandstone is a red sandstone formation, marked with light-colored streaks and spots, primarily found in northern Upper Michigan, portions of Ontario, and under much of Lake Superior. Desired for its durability and aesthetics, the sandstone was used as an architectural building stone in both Canada and the United States.
John Henry Jacobs (April 18, 1847 – 1934) was a pioneer of the sandstone industry in the Upper Peninsula of Michigan, [1] particularly of Jacobsville Sandstone. He owned and operated a number of sandstone quarries. [2] He was born in Lorain County, Ohio, on April 18, 1847. [3]
Guyandotte sandstone: in West Virginia; Jacobsville sandstone: in northern Michigan [4] Jordan Formation in the upper Midwest; Medina sandstone extensive quarries in Western New York [5] Monument Valley: Utah-Arizona state line; Navajo Sandstone: in the Colorado Plateau; Ohio Sandstone:
The Munising Formation sits atop Precambrian sandstone of the Jacobsville Formation. The mottled red Jacobsville Formation is the oldest rock in the park. On top of the Munising Formation, acting as a cap over the other layers is the hard sandstone of the younger Au Train Formation from the Ordovician Period.
The Wall is a near-vertical slope of the Jacobsville Sandstone which dips as steeply 85°. [7] The steep dip of the Jacobsville Sandstone is the result of it being folded due to motion on the fault. Interstate State Park at St. Croix Falls, Wisconsin is an example of the Keweenaw Fault. On its trails visitors can find Tholeiitic basalts.
Prior to the 1900s, Bayfield group sandstone was also variously named Lake Superior Sandstone, brownstone, or redstone, [3] and prefixed by the quarry location. The name was changed to the Bayfield group as its relation to Jacobsville Sandstone (once known as Lake Superior Sandstone) is uncertain.
Jacobsville Sandstone, geologic formation in North America This page was last edited on 13 May 2023, at 03:09 (UTC). Text is available under the Creative Commons ...
According to the available information, Caribou Island consists of a mixture of glacial sediments and Precambrian sandstone. Caribou Island is part of a large glacial moraine that accumulated south of Michipicoten Island. [1] [3] In addition, exposures of gently dipping, friable Jacobsville Sandstone, have been reported from Caribou Island. [4]