GEOLOGY: Earth Physics and Earth Movements Simulated fieldwork study INTERMEDIATE 2 Andrew McLeish Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- Acknowledgement Learning and Teaching Scotland acknowledge the work of Andrew McLeish in the production of this resource. This publication may be reproduced in whole or in part for educational purposes by schools and colleges in Scotland provided that no profit accrues at any stage. © Learning and Teaching Scotland 2004 2 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- CONTENTS SECTION 1: Teachers’ guide 5 Introduction 5 Briefing 5 Materials required 5 Requests for assistance 6 Field study area 7 Requirements for each exposure 9 Assessment 37 The assessment of fieldwork in Geology 41 Record of fieldwork reports 46 SECTION 2: Student guide 47 What you are given 47 What you have to do 47 Assessment 48 Field study map 49 © Learning and Teaching Scotland 2004 3 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- © Learning and Teaching Scotland 2004 4 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- SECTION 1: Teacher’s Guide Introduction The simulated fieldwork study presented here is designed to meet the Geology Intermediate 2 course requirements in cases where candidates are unable to carry out fieldwork in the normal way. The materials may either be used as a free-standing exercise or as an exemplar that can be adapted to suit the local geology in the area of the presenting centre. Briefing Students should be issued with a print-out of the map of the field study area (Figure 1 on p7 and p49). They should be briefed as if they were about to embark on a real field trip. Such a briefing will include discussion of how to plan and organise the work, along with consideration of safety measures. Students should be encouraged to take notes during the discussion. Students should write a field study report based on the materials provided in this exercise. Procedures for assessing the report are included in this guide. Materials required In the room or lab, geological materials for each ‘exposure’ should be set out as shown in Figure 1, and be accompanied by print-outs of the relevant illustrations. ‘Exposures’ should be named, not numbered. Rock slabs or boards should be positioned to allow the measurement of strike and dip. Appropriately labelled rock specimens will be required (with possible substitutes in italics) including: basalt (or porphyritic basalt) vesicular basalt (or amygdaloidal basalt) siltstone (grey) siltstone (red/brown) coal spotted shale weakly metamorphosed sandstone (red/brown) shale vent breccia (or agglomerate, or tuff) dolerite (or basalt) grey sandstone raised beach sediment with littoral gastropods and bivalves. © Learning and Teaching Scotland 2004 5 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Other materials could include: pencils coloured pencils copies of illustrations (Figs 2-26) clinometers compasses rulers notebooks rock slabs or boards hand lenses base maps acid bottles. NB: if acid is used, safety goggles and protective gloves must be provided. Requests for assistance While carrying out the exercise, it might happen that students seek help from the teacher/lecturer, who should carefully consider the level of assistance provided. Students may require help with providing interpretations and organising the work, as well as advice on presentation. As part of the process of gathering information, students may discuss aspects of the exercise with each other. It is, however, essential that each student be seen to make a significant individual contribution to all aspects of the work. © Learning and Teaching Scotland 2004 6 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 1: Field study area © Learning and Teaching Scotland 2004 7 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- © Learning and Teaching Scotland 2004 8 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- Requirements for each exposure On the following pages, tables listing the requirements for each location in Figure 1 are provided. They are followed by relevant illustrations, which can be displayed accordingly. © Learning and Teaching Scotland 2004 9 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- Location Quern Quarry Materials Field Sketch QQ1 (Figure 2) Field Sketch QQ2 (Figure 3) Specimens: QQ1 basalt (or porphyritic basalt); QQ2 vesicular basalt (or amygdaloidal basalt) Details of geology Basalt lava flow with rubbly, weathered surface and columnar jointing. © Learning and Teaching Scotland 2004 10 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 2 Quern Quarry Figure 3 Quern Quarry © Learning and Teaching Scotland 2004 11 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- Location Montgomery Cleft Materials Figure 4 Specimens: MC1 siltstone; MC2 coal Details of geology Reverse fault between synclinally and anticlinally folded siltstone. Siltstone behaving as incompetent layer. Coal seam overlying siltstone. Location: St Monans, Fife. © Learning and Teaching Scotland 2004 12 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 4: Montgomery Cleft © Learning and Teaching Scotland 2004 13 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- Location Robert Burn Materials Figure 5 Figure 6 Figure 7 Specimens: RB1 coal; RB2 grey siltstone Details of geology Figure 5: reverse fault - coal faulted against shale. Location: Anstruther, Fife. Figures 6 and 7: reverse faults in mudstones with dolomitic and calcareous partings. Location: St Monans, Fife. © Learning and Teaching Scotland 2004 14 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 5: Robert Burn Figure 6: Robert Burn © Learning and Teaching Scotland 2004 15 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 7: Robert Burn © Learning and Teaching Scotland 2004 16 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- Location River Fenix Materials Figure 8 Figure 9 Details of geology Figure 8: normal fault - sandstone with flaky inclusions of mudstone has been moved down to abut against mudstone with dolomitic partings. Figure 9: slickensides. © Learning and Teaching Scotland 2004 17 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 8: River Fenix Figure 9: River Fenix © Learning and Teaching Scotland 2004 18 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- Location Rudi Valley Materials Figure 10 Figure 11 Figure 12 Specimens: RV1 spotted shale; RV2 weakly metamorphosed sandstone. Details of geology Transgressive sill of white trap in sandstone and oil shale. The sill was originally basaltic but its minerals have been altered to calcite and kaolinite by emanations from stewed oil shales. [‘Trap’ (Swedish, trappa, a stair) is an old term that refers to tabular masses (lava flows and sills) of basalt]. Location: South Queensferry, West Lothian. © Learning and Teaching Scotland 2004 19 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure10: Rudi Valley © Learning and Teaching Scotland 2004 20 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 11: Rudi Valley © Learning and Teaching Scotland 2004 21 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 12: Rudi Valley © Learning and Teaching Scotland 2004 22 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- Location Scallop Shore Materials Figure 13 Figure 14 Specimens: SS1 shale; SS2 vent breccia Details of geology Contact between volcanic plug and country rock (shale and sandstone). The shale is the darker rock, the vent breccia the lighter. The brown lumps in the shale are ironstone nodules. The shale and sandstone have been brecciated by the injection of gassy volcanic ash. Location: St Monans, Fife. © Learning and Teaching Scotland 2004 23 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 13: Scallop Shore Figure 14: Scallop Shore © Learning and Teaching Scotland 2004 24 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- Location Ruff Rock Materials Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Specimens: RR1 basalt or dolerite; RR2 vent breccia Details of geology Figures 15-17: basalt or dolerite dykes and sheets intruded into vent breccia. Figure 18: vent breccia with xenoliths of Old Red Sandstone and layered tuff. Figures 19 and 20: vent breccia with xenoliths of shale and siltstone. (Red fragments are not Old Red Sandstone. The colour has been produced by oxidation due to weathering). Location: St Monans, Fife. © Learning and Teaching Scotland 2004 25 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 15: Ruff Rock © Learning and Teaching Scotland 2004 26 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 16: Ruff Rock Figure 17: Ruff Rock © Learning and Teaching Scotland 2004 27 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 18: Ruff Rock Figure 19: Ruff Rock © Learning and Teaching Scotland 2004 28 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 20: Ruff Rock © Learning and Teaching Scotland 2004 29 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- Location Clabbidoo Crack Materials Figure 21 Specimens: CC1 grey sandstone; CC2 vent breccia Details of geology Contact zone between volcanic plug and country rock (sandstone). The light coloured sandstone has been brecciated by the injection of gassy volcanic ash. Location: St Monans, Fife. © Learning and Teaching Scotland 2004 30 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 21: Clabbidoo Crack © Learning and Teaching Scotland 2004 31 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- Location Haddock Head Materials Figure 22 Figure 23 Details of geology Figure 22: anticline in dolomitic limestone. Location: St Monans, Fife. Figure 23: Syncline in sandstone, siltstone and shale. The rocks are encrusted with barnacles. Location: Cellardyke, Fife. © Learning and Teaching Scotland 2004 32 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 22: Haddock Head Figure 23: Haddock Head © Learning and Teaching Scotland 2004 33 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- Location Natterjack Ness Materials Figure 24 Figure 25 Figure 26 Specimen: NN1 sediment with littoral gastropods and bivalves. Details of geology Figure 24: raised beach deposit. Figure 25 and Figure 26: shelly deposits within the raised beach. The shells are mostly gastropods (limpets, winkles, dog whelks and top shells). Bivalves are also present (cockles and trough shells). Location: Anstruther and Pittenweem, Fife. © Learning and Teaching Scotland 2004 34 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 24: Natterjack Ness Figure 25: Natterjack Ness © Learning and Teaching Scotland 2004 35 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 26: Natterjack Ness © Learning and Teaching Scotland 2004 36 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- Assessment Details of assessment are set out in the support notes for Outcome 3, PC a, b and c. While students should be assessed on the basis of their reports, the students’ contributions to discussion and the quality of their field notes may confirm or complement the judgement of the teacher/lecturer. The following additional guidance is offered. 1. Gathering of information Planning and organisation of work Examples of good practice: the student provides himself/herself with a comprehensive set of equipment the student gives due regard to safety procedures. For example, the student suggests: - checking tide tables - wearing a hard hat when working in quarries and under cliffs - studying exposures on high ground only at times when the weather is good - leaving a note of his / her intended whereabouts - carrying a mobile phone - permission is sought where access may be restricted exposures are visited in a systematic manner. For example, - well exposed areas are studied before poorly exposed areas - exposures with simple relationships are studied before exposures with complex relationships - rocks are studied in order of age - the field area is studied along a series of transects - stream sections are studied in an upstream direction critical exposures are revisited. Observing Examples of good practice: observations are accurate and detailed observations are aided by measurements. For example, - strike and dip - grain size - bed thickness - fault displacement - diameter of joint blocks - thicknesses of dykes, sills and strata. © Learning and Teaching Scotland 2004 37 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Recording Records should be made in appropriate formats. For example: – text – diagrams – maps – photographs – tables – graphs. Examples of good practice: each field note is accompanied by a reference to the location at which it was made the text in the report is concise. No irrelevant information is given diagrams and photographs are annotated. Photographs may be annotated by means of transparent overlays or by use of the computer for scanned or digital photographs. Each has a scale and geographical orientation maps are annotated. Each has a legend, scale and geographical orientation. the most appropriate forms of tables and graphs are used. 2. Processing Information Identification In simulated fieldwork studies, students should be able to identify a range of the features specified in the Unit Content and to describe them to an appropriate level of detail. Examples of good practice: rocks, and geological structures and relationships are accurately identified clear distinctions are drawn between features of different types. For example, - between folds of different types - between faults of different types - between intrusions of different types. Overall content The simulated study should contain sufficient geological features to allow the student to produce a report with an appropriate level of content. Examples of good practice: the geological content of the report is of acceptable quality and variety illustrations are integrated into the report. © Learning and Teaching Scotland 2004 38 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Presentation The report should be set out in a systematic and coherent manner. Examples of good practice: all required elements (e.g. title, text and illustrations) are present the text is of a simple, clear, straightforward style that is easily read and understood the illustrations clearly show what is intended. They are augmented by relevant annotations relevant graphs and tables are included the student suggests how improvements could be made. 3. Interpretation It is not expected that all interpretations are necessarily correct. Examples of good practice: interpretations are based on observations interpretations are justified by reasons the student shows sound judgement in interpreting structural relationships and geological histories the student shows an appreciation of the limitations of their conclusions. © Learning and Teaching Scotland 2004 39 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- © Learning and Teaching Scotland 2004 40 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- The Assessment of Fieldwork in Geology NB: Information for Intermediate 2 is highlighted in grey. 1. Fieldwork experience At all levels of the study of geology, experience of fieldwork adds greatly to the enjoyment and understanding of the student. In geology, the submission of fieldwork reports is required for units at Intermediate 2, Higher and Advanced Higher levels. At Intermediate 2, while the report should preferably be based on real fieldwork, it may be based on simulated fieldwork. At Higher and Advanced Higher levels, use of real fieldwork is highly desirable. However, where it is not possible to carry out a study in the field, simulated studies may be used. 2. Reports of Fieldwork The following three aspects of fieldwork reports apply at degrees appropriate to the levels of the Units: 2.1 Organisation, Presentation and Recording Organisation of work All practical work should be undertaken in a systematic manner. This organisation should be reflected in the manner in which the report is written. Presentation of work The report is of a scientific investigation and its structure and accessibility to the reader should reflect this. At all levels the report should have: a title a specification of the locality of the area or areas studied illustrations e.g. maps, diagrams, photographs, graphs an account of observations, measurement and interpretations. At Higher and Advanced Higher levels there may also be: suggestions for further work or research reference to limitations of the methods used in the investigation. Recording of results and overall content Marks awarded should be based on the ability of the student to record, in an appropriate and complete form, observations, measurements, calculations and interpretations drawn from fieldwork and any further practical work. The mark should take account of the quality of the geological content of the report and the degree to which relevant illustrations such as maps, diagrams, photographs and graphs are integrated into the report. © Learning and Teaching Scotland 2004 41 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------2.2 Identification and Observation Identification There should be evidence of recognition of specific features and of their description to an appropriate degree of detail. Marks should be awarded for the quantity of identification from the possible range of features and for the quality of the description given. Observation Marks in this category are awarded for skills shown by the candidate in making disciplined accurate observations of whatever is under investigation. Each student should play an active part in carrying out the investigation. The mark awarded may be drawn partly from follow-up laboratory work carried out by the student. 2.3 Interpretation Under this heading the assessor should consider the quality of the interpretation made, and the extent to which interpretations are justified. At Higher and Advanced Higher levels, students should show an appreciation of the limitations of particular methods of investigation and the conclusions drawn from them. 3. Extent of support While the fieldwork activity is under the direction of the teacher/lecturer, the individual and independent work of the student is important. The report must be the individual work of the student and be based on an investigation in which the student has demonstrated an acceptable level of participation. Depending on the fieldwork activity, the collection of information may involve group work. Guidance and advice should be offered to the student and up to two redrafting opportunities allowed. 4. Assessment 4.1 General framework of assessment Marks should be recorded and fieldwork reports retained for possible moderation procedures. 4.2 Possible contribution to evidence A fieldwork report is an opportunity for a student to perform at a level beyond that required for a bare unit pass. Fieldwork reports may form part of the evidence on which course estimates are based or which may be submitted in support of an appeal. An indication is given below of the features which indicate a unit pass (and which might lead to C grade course assessment if maintained in other parts of the course) and those which indicate achievement beyond a unit pass (and which might lead to an A or B course assessment if maintained in other parts of the course). © Learning and Teaching Scotland 2004 42 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Unit pass (possible C award) Beyond C award The student The student Organisation i. demonstrates a systematic approach to fieldwork i. demonstrates a systematic approach to fieldwork Presentation ii. produces a structured report ii. produces a structured report Recording iii. records an adequate number of possible features. iii. records almost all possible features Identification i. recognises an adequate number of simple features i. recognises almost all simple and some complex features Observation ii. provides basic observations. ii. provides detailed and acute observations. Interpretation i. interprets simple features correctly at a simple level i. interprets almost all simple and some complex features correctly with an appropriate degree of detail. 4.3 Requirements of fieldwork reports at different levels Within the general framework of assessment given above, the specified performance criteria for each unit should be met. It is recognised, however, that certain field areas may not provide opportunity to meet all performance criteria fully. This should be taken into account during assessment. © Learning and Teaching Scotland 2004 43 Geology Intermediate 2 -------------------------------------------------------------------------------------------------------------- Access 3 and Intermediate 1 No fieldwork report required. Intermediate 2 Earth Physics and Earth Movements Fieldwork report of about 400 words PC: a. Geological structures are correctly described with respect to their modes of formation and effects. The cross-cutting and superposed relationships of rocks and structures in the field are correctly established. Fieldwork is planned, organised, conducted and reviewed effectively. b. c. Higher level Earth Physics, Structural Geology and Plate Tectonics Fieldwork report of about 1000 words. PC: a. b. Geological structures and igneous bodies are correctly identified and described. The modes of origin of structures and their cross-cutting relationships are correctly described. Fieldwork is planned, organised, conducted and reviewed effectively. c. Advanced Higher level Engineering geology Engineering geology report of about 1000 words. PC: a. b. c. d. e. Laboratory and field procedures are described accurately. Relevant measurements and observations are recorded in appropriate framework. Recorded laboratory and field information is analysed and presented in an appropriate format. Conclusions drawn are valid. Laboratory and field procedures are evaluated with supporting argument. © Learning and Teaching Scotland 2004 44 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Environmental geology Environmental geology report of about 1000 words. PC: a. b. c. d. e. Laboratory and field procedures are described accurately. Relevant measurements and observations are recorded in an appropriate framework. Recorded laboratory and field information is analysed and presented in an appropriate format. Conclusions drawn are valid. Laboratory and field procedures are evaluated with supporting argument. © Learning and Teaching Scotland 2004 45 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- Record of fieldwork reports Aspect Assessed Name of Candidate Organisation of Work /2 Observation /5 Recording /3 Gathering Information /10 Identification/Description /4 Content /4 Presentation /2 Processing Information /10 Interpretation /10 Pass/Fail Cut-off = 15/30 With NOT LESS than 4/10 in each main aspect: Gathering Information Processing Information Interpretation © Learning and Teaching Scotland 2004 46 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- Section 2: Student Guide You are to imagine that you are on a geological field trip. You will have to make a record of what you do, see and think. Afterwards, you will have to write a report. Ask your teacher/lecturer if you need help with any aspect of this field study. 1. What you are given Map (Figure 1) The field trip is to the area shown. On the map, the arrows show the places where you will be looking at rocks. Materials to be studied Your teacher or lecturer has set out geological materials (rocks, drawings, printouts, etc.) for each location you are going to visit. Also, there are rock slabs or boards that show the strike and dip of the rocks. 2. What you have to do (a) Plan your field trip Study the map of the field study area. Think about: i. The materials you would need to take with you on this field trip. ii. The order in which you would visit the rock locations. iii. Safety precautions you would have to take. (b) Make and record observations Go from place to place around the room. At each location, study the geological materials very carefully. Think about: i. The observations and measurements you will have to make. ii. The best ways of recording your observations and measurements. It may happen that you will come across something you are not sure about. For example, you may see a geological structure that you do not recognise. What will you do if this happens? (c) Make interpretations Think about things such as: i. How structures have formed ii. The conditions under which rocks and structures formed iii. The order in which structures have formed iv. How the rocks and structures at one place relate to the rocks and structures at another place. What you see in one place may help you to understand what you see at another place. (d) Write a report on your field study Your report should be about 400 words long. In your report you should say what you have done, and describe and interpret what you have seen. © Learning and Teaching Scotland 2004 47 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------- Assessment Your report will be assessed in the way shown in the table: What is being assessed Marks given Other notes Gathering information (10 marks) under these headings: 2 Organisation of work You should show that you have properly planned the work and that you have carried it out in a systematic manner. 5 Observation Details of rocks, structures etc. and their relationships should be very carefully observed. 3 Recording Observations, measurements, calculations and interpretations should be recorded in the most suitable forms (e.g. text, labelled diagrams, photographs, graphs, maps and tables). Processing information (10 marks) under these headings: 4 Identifying and describing Rocks, structures and geological geological features relationships should be correctly identified and carefully described. 4 The content of the report There should be an adequate level of geological content. Useful illustrations should be built into the report. 2 The presentation of the The report should be set out in an orderly manner and it should have: report a title a brief statement of how the work was planned and organised illustrations an account of observations, measurements and interpretations. Interpretation (10 marks) The interpretations that you make should be of good quality; reasoning for your interpretations should be given. To pass you have to get 15 / 30 or more. You must gain at least 4 / 10 in each main part (gathering information; processing information; and interpretation). © Learning and Teaching Scotland 2004 48 Geology Intermediate 2 --------------------------------------------------------------------------------------------------------------Figure 1: Field study map © Learning and Teaching Scotland 2004 49