726 INDEX ore bodies (continued) Papua New Guinea 4:112 phosphate deposits 5:126, 5:127f plate tectonics 1:440f porphyry ore deposits 3:633/", 4:112, 4:120, 5:369 quartz (SiO2) 3:569-571 chalcedony 3:570, 5:35-36, 5:51, 5:52f chemical composition 3:569 cristobalite 1:368, 3:569, 3:570f9 3:571 general discussion 3:569 industrial uses 3:570 Meteor (Barringer) Crater, Arizona, United States 3:571 silica 3:570, 3:S70f structure 3:570 tridymite 3:540f9 3:569, 3:570f9 3:571 types 3:570 weathering 5:17 Russia 4:472f, 4:473 South-east Asia 1:195 sulphide minerals 3:574-586 arsenopyrite (FeAsS) 3:582-583, 3:583f crystal structure 3:574, 3:575t, 3:576f, 3:577f geobarometry 3:583 geothermometry 3:582-583 new deposit discovery 1:441 f ore deposit types 3:584, 3:585t phase relationships 3:581f phase transformation diagram 3:580f physical properties 3:576, 3:577t plate tectonics 1:440f sphalerite (Zn(Fe)S) 3:S84f stability 3:578, 3:579f, 3:580f sulphidation curves 3:582f sulphur occurrences 3:554 tungstate minerals 3:586-588 vanadate minerals 3:588-590 See also economic geology; mineral deposits; specific minerals Oregon, United States 4:53, 5:476-477, 5:480-481 Orellan land mammal age 5:472, 5:473f Oresound 2:150 Organization of Petroleum Exporting Countries (OPEC) 4:333-334 Oriental mountain system 4:48 Orinoco River 5:2 9£ Orkhon arc 4:466 Orleanian mammalian age 5:479f Ornithischia diagnostic characteristics 2:492f general discussion 2:492 Neornithischia 2:493 Thyreophora 2:493 Ornithuromorpha 2:498f9 2:499, 2:501f erogenic events 3:648 Acadian orogeny 4:72, 4:74f9 4:88, 4:90f9 4:91 Albany Eraser Orogeny 4:352 Alleghanian orogeny 4:72, 4:74f, 4:79, 4:88-89, 4:90f, 4:91 Alpine Orogeny 1:17, 2:113, 2:117, 4:471 Ancestral Rocky Mountains orogeny 4:52 Andean Orogen 1:238f Antler orogeny 4:50 Arctic Shelf 4:464, 4:464f Argentina l:156f Australia Albany Eraser Orogeny 1:209'/, 1:210-211, l:213f, l:214f, 1:219, 1:239f, 4:352 Barramundi Orogeny 1:211, 1:211 f, 4:352 Capricorn Orogeny 1:209f, 1:209-210, 9I:211f I:212f9 1:239 f Chewings Orogeny 1:212 f, 1:215 Delamerian Orogeny 1:239f, 1:240, l:240t, 1:241 f, 1:245, 1:248 f Edmundian Orogeny 1:214f Ewamin Orogeny 1:213 f9 1:218-219 Glenburgh Orogeny 1:209, 1:21 Of Hall's Creek Orogeny 1:21 If, 1:212-213, l:239f Hooper Orogeny l:211f, 1:212 Isan Orogeny 1:213f, 1:218-219 Kararan Orogeny I:212f 1:213f, 1:217-218 Kimban Orogeny 1:209f, 1:21 If, l:212f, 1:215-216 King Leopold Orogeny 1:211, l:215f, 1:239 f93:132f Lachlan Orogeny See Lachlan Orogeny New England Orogeny 1:239f, l:240t, 1:241 f, 1:242, 1:249 f, 1:250, 4:202f Olarian Orogeny 1:213 f, 1:218-219 Ophthalmian Orogeny 1:208-209, l:210f Paterson Orogeny l:215f, 1:220, 1:239 f Petermann Orogeny l:215f, 3:132f Pine Creek Orogeny 1:209f, l:210f, 1:211 Pinjarra Orogeny l:209f, 1:210-211 Proterozoic 1:208 reactivation 1:214f9 1:219-220 Ross Orogeny 1:135, 1:238f, 1:245, 1:248 f Sleafordian Orogeny l:210f, 4:352 Strangways Orogeny 1:211 f, 1:214-215 Tanami Orogeny 1:21 If, 1:213 Thomson Orogeny 1:239f, l:240t, 1:241 f9 1:242 Trans-Hudson Orogeny 1:211, 4:16, 4:19f, 4:352 Wickham Orogeny l:215f Yapungku Orogeny 1:211 f, 1:214-215 Baikalide Orogeny 4:463, 4:464, 4:464f Barramundi Orogeny 4:352 Brazil Brasiliano-Pan-African orogeny 1:307-308, 1:308 f Neoproterozoic orogenic domains Aracuai orogenic event l:313f, 1:315 Araguaia orogenic belt I:314f9 1:319 Borborema strike-slip system I:307f9 I:315f9 1:323 Brasilia orogenic belt I:314f9 1:320 Dom Feliciano orogenic belt 1:318 general discussion 1:314 Mantiqueira orogenic system I:307f9 I:313f9 1:315 Paraguay orogenic belt I:314f9 1:320 Ribeira orogenic belt 1:318 Tocantins orogenic system 1:307f, l:314f, 1:319 Cadomian Orogeny 2:75-78, 3:133f9 3:648, 4:352 Caledonian Orogeny Altai-Mongol domain 4:465, 4:466f British Isles 2:56-63 Connemara terrane 2:60 Grampian terrane 2:59 granitic rocks 3:237t Hebridean terrane 2:59 Lake District terrane 2:60 Midlands terrane 2:61 Midland Valley terrane 2:60 Monian terrane 2:60 Northern Highland terrane 2:59 palaeogeographic reconstruction 2:57f Silurian 4:191 Southern Uplands terrane 2:60 tectonic evolution 2:57f, 2:61 terranes 2:59 Welsh Basin terrane 2:60 China 1:349f, 1:351 Greenland 2:68, 2:69f, 3:239 palaeogeographic reconstruction 2:56 Scandinavia 2:64-74 Arctic Caledonides 2:71f, 2:72f background information 2:64 Baltica continental margin 2:65f, 2:67, 3:648 Barents Shelf 2:50f9 2:64, 2:64f9 2:70 eastern Greenland 2:68, 2:69f, 2:71 f geographic location 2:3 f Koli Nappe Complex 2:6Sf, 2:67 Laurentian continental margin 2:65/", 2:67 Lower Allochthon 2:65f, 2:66 Middle Allochthon 2:65f9 2:66 Nordaustlandet Terrane 2:70-71 Scandian collision 2:68 Seve Nappe Complex 2:65f, 2:67 Silurian 4:191 Svalbard 2:70, 2:70f9 2:71 f tectonic evolution 2:73, 2:73f tectonic features 2:72f