Channel bodies of the lower Sydney Mines Formation (Carboniferous), Sydney Coalfield, Atlantic Canada.

摘要

The Sydney Mines Formation (SMF) forms the upper unit of the Late Carboniferous, Westphalian D to Stephanian A, Morien Group--correlative regionally with the Cumberland Group. The lower Sydney Mines Formation was studied, and is intermittently exposed in the Sydney area over a distance of 45 km along depositional strike. It forms part of the onshore component and southern limit of the Sydney Basin. The lower SMF exhibits of cyclothems bounded by coal seams. The SMF commences with the Emery seam cyclothem interval where it rests on the underlying South Bar Formation (SBF). The SMF thickens and, therefore, is expanded to include the underlying Gardiner and McRury seam cyclothem intervals, in the Glace Bay Syncline area, where the SMF rests on the Waddens Cove Formation (WCF). The highest interval studied is capped by the lower leaf of the Bouthillier seam. Twenty channel bodies, up to 18.6 m thick, were studied in sea cliffs using photomosaic tracings.;Seven channel body groups were recognised. (Abstract shortened by UMI.).