Field sketches how to draw them Liverpool（如何画草图利物浦）.pdf

Field sketches how to draw them Maggie Williams Aims • To show students how to make relevant field sketches • To encourage use of appropriate technical terms to describe what is seen sketched in the field • To help students recognise relationships between geology topography • To help students revise basic field phenomena Why are field sketches important? • Record field observations measurements • Give a summary of key structural geological features • Help analyses of photographs taken in the field • Provide useful memory aids • Here today –gone tomorrow? Making a field sketch You don’thave to: You do have to: • Be an artist • Produce a simple • Produce a outline drawing or masterpiece or summary diagram work of art • Allow enough time to make a sketch • Keep work neat tidy The wrong way? The right way? Stages in drawing a field sketch 1. Choose the view you wish to record 2. Choose a scale draw lines to divide your page 3. Draw in the skyline foreground in your field of view 4. Draw in lines showing the main structural geological features 5. Draw in features such as changes in slope, vegetation rock type. Hint: Leave out details of minor features – best recorded in smaller sketches highlighting details. 6. Add labels 7. Check list (a) Date (b) Locality National Grid Reference (c) Title (d) Direction of view (e) Measurements/scale (f) Rock types (g) Dip strike (h) Types of structures (sedimentary, tectonic) Hint: Avoid vague terms