Pleasant View formation

Unit Name: Pleasant View formation
Unit Type: Lithostratigraphic
Rank: Formation
Status: Informal
Usage: Currently in use
Age Interval: Middle Cambrian (513 - 497 ma)
Age Justification: The upper unit is rich in trilobite faunas of the Paradoxides davidus and Hydrocephalus hicksii Zones, and the lower unit in those of the Paradoxides bennetti Zones of the middle Cambrian (Van Alstine, 1948; T. P. Fletcher, pers. comm., 1975) (Strong et al., 1978a).
Province/Territory: Newfoundland & Labrador

Originator: Strong et al., 1978a, b.

Type Locality:

Newfoundland.

Distribution:

Has a maximum thickness of about 100 m (Strong et al., 1978a).

Locality Data:

Thickness(m): Maximum 100.

Lithology:

It consists of an upper unit of black, rusty weathering, highly fissile shale and dark grey siltstone, the shale containing grey limestone nodules, and a lower unit of light green mudstone and shale, grey limestone and dark grey siltstone, all manganiferous (Strong et al., 1978a).

Relationship:

The Pleasant View Formation occupies the stratigraphic top of the Inlet Group, conformably overlying the Salt Pond Formation (Strong et al., 1978a).

References:

Strong, D.F., O'Brien, S.J., Taylor, S.W., Strong, P.G., and Wilton, D.H., 1978a. Aborted Proterozoic rifting in eastern Newfoundland; Canadian Journal of Earth Sciences = Journal Canadien des Sciences de la Terre, vol. 15, no. 1 (January), pp. 117-131.

Strong, D.F., O'Brien, S.J., Taylor, S.W., Strong, P.G., and Wilton, D.H., 1978b. Geology of the Marystown [1M/3] and St Lawrence [1L/14] map areas, Newfoundland, Gibbons, R.V. (ed.); Government of Newfoundland and Labrador, Department of Mines and Energy, Mineral Development Division, Report 77-08, 81 p., Geofile Number: NFLD/1492.

Van Alstine, R.E., 1948. Geology and mineral deposits of the St. Lawrence area, Burin Peninsula, Newfoundland; Geological Survey of Newfoundland, Bulletin 23, 64 p.

Source: CSPG Lexicon of Canadian Stratigraphy, Volume 6, Atlantic Canada; G.L. Williams, L.R. Fyffe, R.J. Wardle, S.P. Colman-Sadd, Boehner, R.C. (editor)
Contributor: Michael Pashulka
Entry Reviewed: No
Name Set: Lithostratigraphic Lexicon
LastChange: 08 Mar 2011