Drawing Geological Structures (Geological Field Guide) Summary ½ 102

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Drawing Geological Structures (Geological Field Guide) Summary ½ 102 Ë ➫ Drawing Geological Structures (Geological Field Guide) Read ➳ Author Join or create book clubs – Dcmdirect.co.uk Despite the modern dominance of computer graphics programs and digital cameras the ability todraw geologicalObservational ability and contributes to the understanding of geological structures and structure forming processes Geological drawing is assisted scientific thinkingDrawing Geological Structures provides undergraduate as well Drawing Geological Kindle as graduate and practicing geologists with a thorough step by step practical guide to the art of geological drawing Beginning with the basics. Currently going to school for geologypaleontology and this book is a huge help

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The book covers thin sections sample sections samples and geological stereograms The chapters provide examples of how drawings evolve and are complemented by exercises allowing the reader to practice their drawing prior to going out into the field or working at the microscope Users of this uniue guide will develop their knowledge and technical vocabulary whilst also improving their drawing skill. I looked forward to opening this latest addition to the Geological Society of London Handbook Series with great anticipation My original copy of Maurice Tucker’s 1982 The Field Description of Sedimentary Rocks which I bought as an undergraduate has travelled with me to my allotted mapping in rain drenched Scotland Arctic field work and core logging on a rolling back deck in the Atlantic There is a need for an introductory handbook on geological drawing; however Jörn Kruhl’s Drawing Geological Structures is not itThirty one pages into the book Kruhl is just reaching the end of his introductory musings Thirty one pages into Tucker’s original Field Description of Sedimentary Rocks we are already one third through a handbook that is tightly focused and clearly designed to impart practical field geology skills to the reader I checked back into the euivalent volumes on Mapping Barnes Metamorphic Rocks Fry and Igneous Rocks Thorpe packed with basic information and guidance on doing geology in the fieldJörn Kruhl takes a uite different approach he suggests that if is “pouring and fieldwork beyond mapping is not useful it is better to stay at the inn” This is a book that should have come bound in Moroccan leather covers and printed on handmade rag paper; an exclusive printing where the fresh volume arrives uncut and unopened the leaves awaiting trimming with a Damascus bladed lacuer handled letter openerSome of the language is exuisite evoking memories of Bruce Chatwin’s novella Utz To those who relish the language of Trollope or the complex sentence structure of Dutch this book will be a gem Sit with it in the inglenook of Welsh highland inn sipping decent snifter of Ardbeg Islay malt whiskey and enjoy – “Normally however we first only interpret here is foliation and between the planes the folds of a former foliation can be seen and then turn this observation into a mixture of lifelike and symbolic drawing” But is this really a handbook intended for the student of geology seeking guidance on how to record geological structures field outcrops thin sections hand samples or fossilsHis basic rules for geological drawing at the end of the introduction are admirable simple and clear – most seasoned geologists will fully support them Most of what Kruhl writes is useful and does support the development of better geological drawing But before you can separate the true ore from the gangue you will need to be already familiar with the subject of geological drawing To an undergraduate or high school student most of this book will seem meaningless Kruhl introduces the relationship between artistic and geological drawing and Betty Edwards' views on right hemisphere left hemisphere dominance to explain the development of drawing skills This may seem fine at first reading; however the theory of lateralization of brain function has yet to be established What he does not consider is any recognised theories on how special recognition developments and is expressed through drawing Simplistic arguments on whether individuals “remain at the stick figure level for their entire life“ do not help geological educators to support their students’ ability to draw geological structuresOn some subjects Kruhl is unhelpful and potentially misleading He insists that only ball point or fibre tipped pens should be used in the field rather than the pencil He does points out that line density and consistency is very important but then many of his own illustrations break his rule and with feathery lines and crosshatching that could be a geological structure or just an artistic flourish In the the field laboratory or at the core table I would suggest that a pencil should always be the preferred tool for geological drawingHe also advises undergraduate geologists that A5 and A4 are the preferred size for drawings thin sections This is not helpful; clear drawings of a limited but representative number of minerals is what is reuired I would suggest three to four crystals is appropriate for most purposes My biggest criticism however is that for an author whose favourite word is precision he is very imprecise in its usage in science precision is a measure of the closeness of repeatability of measurements but for Kruhl it can mean almost anything accuracy exactness resolution fidelity reproducibility and his exact meaning changes from sentence to sentenceSo enjoy his language meditate on the Zen musings of a very experienced geologist but don’t expect to learn much about how to do field sketching or produce a scientific record of geological samples by drawing

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Drawing Geological Structures Geological Field GuideDespite the modern dominance of computer graphics programs and digital cameras the ability todraw geological structures manually remains a necessity in academic geology and beyond Drawings serve for uick and simple documentation in the field or at the microscope They can be applied as a language of their own as well as be adapted to suit specific reuirements Moreover geological drawing improves. When I bought this I somehow was under the impression that it would be larger that a geological field notebook and it's definitely not I was also hoping it could help with geologist cross sections which it does not I'm sure it will be useful at some point but most of the material in here can be found in text books or online