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Flannagan Fire Tower Quarry, Douglas Co., Wisconsin, USAi
Regional Level Types
Flannagan Fire Tower QuarryQuarry
Douglas Co.County
WisconsinState
USACountry

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Latitude & Longitude (WGS84): 46° 35' 9'' North , 91° 56' 8'' West
Latitude & Longitude (decimal): 46.58611,-91.93556
GeoHash:G#: cbq95bwxf
USGS MRDS Record:10229764
Locality type:Quarry
Köppen climate type:Dfb : Warm-summer humid continental climate


Abandoned quarry in 1.1 billion year old Keweenawan basaltic rock. May be identical to the South Range Quarry.

Regions containing this locality

North America Plate

Plate - 4,950 mineral species & varietal names listed

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Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


No minerals currently recorded for this locality.

Detailed Mineral List:

'commodity:Aggregates'
Reference: From USGS MRDS database

List of minerals for each chemical element

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Mesoproterozoic
1000 - 1600 Ma



ID: 2790923
Chengwatana Volcanic Group

Age: Mesoproterozoic (1000 - 1600 Ma)

Stratigraphic Name: Chengwatana Volcanic Group

Description: Gray basalt flows, interflow breccia, tuff, and minor sedimentary rocks

Comments: This group has U-Pb zircon ages ranging from about 1094.6 +/- 2.1 Ma from a rhyolite near Lake Nelson, WI (Zartman and others, 1997, U-Th-Pb zircon ages of some Keweenawan Supergroup rocks from the south shore of Lake Superior: Canadian Journal of Earth Sciences, v. 34, p. 549-561) to 1100-1102 +/- 5 Ma elsewhere in the unit (G. Garrels, Univ. of Arizona, unpublished data, 2000; M. Schmidt, MIT, unpublished data, 2000). Original map source: Cannon, W.F., Kress, T.H., Sutphin, D.M., Morey, G.B., Meints, Joyce, and Barber-Delach, Robert, 1997, Digital Geologic Map and mineral deposits of the Lake Superior Region, Minnesota, Wisconsin, Michigan: USGS Open-File Report 97-455 (version 3, Nov. 19

Lithology: Major:{basalt}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Mesoproterozoic
1000 - 1600 Ma



ID: 3190266
Mesoproterozoic volcanic rocks

Age: Mesoproterozoic (1000 - 1600 Ma)

Comments: Mid-Continent Rift

Lithology: Bimodal volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License


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