LITHOSTRATIGRAPHY OF THE DINANTIAN INVERCLYDE AND STRATHCLYDE GROUPS,COCKBURNSPATH OUTLIER, EAST LOTHIAN NORTH BERWICKSHIRE

A revised lithostratigraphy at member level is proposed for part of th e Dinantian (former Calciferous Sandstone Measures) of the Cockburnspa th Outlier. Three members, the Eastern Hole, Horse Roads Sandstone and Hurker Members are recognised in the Tyninghame Formation (Inverclyde Group). The Gullane Formation (Strathclyde Group) is divided into the Kip Carle and Heathery Heugh Sandstone Members, and the Aberlady Form ation (Strathclyde Group) into the Cove Harbour, Bilsdean, and Longcra ig Members. Each member is formally defined, type sections are assigne d, and detailed measured sections presented. The members are unambiguo us over half of the outlier where they are known at outcrop or in core . Generalized lithofacies interpretations show that these members repr esent channel sandstone and floodplain-crevasse deposits in a near-coa stal fluvial-deltaic environment.