Redding (Reading), Fairfield Co., Connecticut, USA
|Latitude & Longitude (WGS84):||41° 18' 9'' North , 73° 23' 0'' West|
|Latitude & Longitude (decimal):||41.30250,-73.38333|
|Köppen climate type:||Cfa : Humid subtropical climate|
A town incorporated in 1767, originally spelled "Reading" but changed shortly after to better reflect its pronunciation.
Geologically, most of the town is underlain by Ordovician unnamed leucocratic orthogneiss or by a central belt of Cambro-Ordovician Rowe Schist and Ordovician Ratlum Mountain Schist that was originally Iapetos Ocean bottom sediments. Cameron's Line, a major Taconian orogenic suture, crosses the NW corner of town and separates the above rocks from Laurentian Proterozoic gneisses and Cambrian Stockbridge Marble and associated calc-silicate rocks.
Mineral ListMineral list contains entries from the region specified including sub-localities
74 valid minerals. 9 (TL) - type locality of valid minerals.
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
470 - 485.4 Ma
|Ratlum Mountain Schist|
Age: Early Ordovician (470 - 485.4 Ma)
Stratigraphic Name: Ratlum Mountain Schist
Description: Gray, medium-grained, interlayered schist and granofels, composed of quartz, oligoclase, muscovite (in the schist), biotite, and garnet, also staurolite and kyanite in the schist. Numerous layers and lenses of amphibolite; also some of quartz-spessartine (coticule) and calc-silicate rock.
Comments: Part of Central Lowlands; Iapetus (Oceanic) Terrane - Connecticut Valley Synclinorium; Hartland Belt. Equivalents of Savoy Schist of Massachusetts (Emerson, 1898, 1917) (CT009, CT010) and of Moretown Formation of Vermont and Massachusetts (Bedrock Geologic Map of Massachusetts, Zen and others, 1983) (CT011) (includes Golden Hill and Ratlum Mountain Schists) (Lower? Ordovician).
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.