LEADER 02473oam 2200325z- 450 001 9911019082103321 005 20220613164815.0 010 $a1-118-61869-6 010 $a1-118-61870-X 035 $a(CKB)4330000000006615 035 $a(VLeBooks)9781118618691 035 $a(EXLCZ)994330000000006615 100 $a20220406cuuuuuuuu -u- - 101 0 $aeng 200 $aField Description of Metamorphic Rocks 205 $aSecond edition 210 $cJohn Wiley & Sons, Inc$d2022 215 $a1 online resource (1 p.) 225 $aThe Geological Field Guide Series 311 $a1-118-61875-0 330 $a"Metamorphic rocks form a substantial proportion of the material that makes up the Earth's crust, and metamorphic processes have been almost continually occurring throughout geological time since the origin of that crust. Metamorphism can be defined simply as the process by which sedimentary or igneous rocks are transformed (metamorphosed) by re-crystallisation due to changes in pressure, temperature, or fluid conditions. To complicate matters somewhat, metamorphism can of course also act on rocks that have already been metamorphosed previously, building layer upon layer of complexity into those rocks that record field evidence of some of Earth's most dynamic processes. Our understanding of metamorphism is somewhat limited by the fact that we are unable to directly observe it happening to the rocks. As you read this, metamorphism is in action all around the planet, in all aspects of the Earth's plate tectonic system (e.g. Figure 1.1), but we cannot directly see it (generally because it happens at depth and very slowly). In order to understand the processes and products of metamorphism and alteration in rocks, detailed fieldwork, petrography, experimental studies, and numerical modelling are required. It is important to note, however, that the very origin of metamorphic petrology (the science of understanding the distribution, structure, and origin of metamorphic rocks) is rooted in a tradition of careful and systematic field observation, and that this remains an absolute cornerstone of the discipline today"--$cProvided by publisher. 606 $aMetamorphic rocks 615 0$aMetamorphic rocks. 676 $a552.4 701 $aJerram$b Dougal$01683086 701 $aCaddick$b Mark$01841577 906 $aBOOK 912 $a9911019082103321 996 $aField Description of Metamorphic Rocks$94421356 997 $aUNINA