Our ref: 260602 Contact Name – Eleanor Pearson at Glasgow Direct Line - 0141 242 2199 Dear Sir or Madam Update Letter - Higher Geology You will be aware that all National Qualifications have been undergoing a review as part of the SQA National Qualifications Review, which is being progressed with the Scottish Executive. The main thrust of the review is to reduce the volume of assessment for both the candidate and the teacher. Some minor amendments will be made over the next session and SQA will inform you of these in the near future. In the interim, only one change is planned and that is to the unit 'Fossils and Stratigraphy'. The changes to this unit are attached and are effective for the academic year 2002-2003. If you have any queries, please do not hesitate to call me on 0141 242 2151, or Hamish Brad on 0141 242 2199. Yours sincerely Eleanor Pearson Qualifications Manager 2 Geology Higher Level Notification of changes to the unit 'Fossils and Stratigraphy'. Changes to take place with immediate effect. These changes will be included in Higher Geology Arrangements Documents, July 2002 version) The section 'Geological history of the British area' should be replaced by a new section entitled 'The geological history of the local area'. The new content and supplementary notes are as follows: Content Supplementary Notes The principles of stratigraphy should be applied to a study of the local area. Since no two areas are the same only a selection of the following would apply. Times when the rocks were formed. For example, were the rocks formed during Precambrian, Devonian or Carboniferous times? Major rock units. Environments of deposition. For example, Lewisian Gneiss, Carboniferous Limestone, Tertiary lavas, Pleistocene boulder clay. What sedimentary structures (eg cross bedding, mud cracks) indicate about ancient environments. Fossils. Palaeoecology What study of volcanic products (eg pillow lavas, bedded tuffs) indicates about ancient environments. Geological History Sedimentary relationships Sequence of deposition. Inversion of sequence. Diachronism. Overlap. Unconformable relationships. Igneous processes Types and relative ages of intrusions and volcanic products. Metamorphic events Relative ages of phases of regional and contact metamorphism. Tectonic events Types and relative ages of faults, folds, plastic deformation (eg stretching of pebbles in conglomerate), brittle deformation (eg joints, boudinage). 3 NAB Tests In the NAB tests only Question 2 (worth 2 marks) refers to the geological history of the British area. This question is of generic type so should not require alteration or replacement. However, teachers/lecturers may modify this question so that it relates specifically to the geological history of the local area.