608 INDEX blackband ironstones diagenesis 5:102 ferruginization process 5:103, 5:104f general description 5:99 occurrence 5:34 photomicrograph 5:99f sedimentation depth 5:100f Blackett,Paul3:194 Black Forest, Germany 2:126f9 2:75, 2:81f Black Hills, South Dakota, United States 4:21 Black Sea Alps 2:125 anoxic environments 4:495, 4:496f Biblical geology 1:254 calcareous algae 2:431 as European border 3:648-649 Holocene 2:151-152 oceanic crust 3:650 erogenic events 4:471 Trans-European Suture Zone (TESZ) 3:648 black shales anoxic environments 4:193, 4:496-497 bedded cherts 5:54 fossils 4:497, 4:498f Gondwana 3:129 large igneous provinces (LIPs) 3:321f North Africa 1:21, l:22f North American continental interior 4:28, 4:29f Phosphoria Formation, United States 4:500 Silurian 4:193 black smokers chlorinity 5:37It East Pacific Rise 5:366f, 5:388, 5:388f ecology 3:105 growth stages 5:392f, 5:393f mineral deposits 3:491, 3:628, 5:388 occurrence 3:115, 5:365 structure 5:39Of Black Warrior Basin 4:61, 4:62f, 4:67 Blackwelder, Eliot 5:542-543 Blake Outer Ridge 4:104-105, 4:93, 4:93f Blake Plateau 4:101f, 4:103, 4:105, 4:63, 4:93, 4:93f, 4:96f, 4:98-100 Blake Ridge 4:106f blastomylonite 3:388t blended whiskies 3:82 block lava 3:326, 5:567-569, 5:571f blossite (Cu (V O )) 3:589t Blountian stage 4:75f Blue Mountains, United States 4:53, 4:55-56, 4:72 Blue Ridge Mountains, United States 3:157/",4:12,4:76/" blueschist facies composition 3:404 definition 3:388t mineral assemblages 3:397f, 3:398f, 3:399f, 3:400f pressure-temperature conditions 3:403f regional metamorphism 3:396/", 4:409f, 4:409-410 subduction zones 3:404f Tasman Orogenic Belt l:246f temperature-depth diagram 3:412f volatile components 3:407f Boborema Plateau, Brazil 1:309 Bode's law 5:221 body waves 5:333 boggsite 3:593t Bohemia 4:178-179, 4:193, 4:202f Bohemian Massif Mps2:126f Anisian-Ladnian/Muschelkalk palaeogeography 2:11 Of Aptian-Albian palaeogeography 2:116f Bajocian-Bathonian palaeogeography 2:112f Berriasian-Valanginian palaeogeography 2:115 f Cretaceous 2:113 dykes 2:117 Eocene 2:120-124 Jurassic 2:106f, 2:113, 2:114f Kimmeridgian-Tithonian palaeogeography 2:114-f Oligocene 2:121f, 2:122f Palaeocene 2:117 Permian 2:107f Permo-Carboniferous magmatism 2:96f Rhaetian-Hettangian palaeogeography 2:lllf f Scythian-Bundsandstein palaeogeography 2:109 f Senonian-Danian palaeogeography 2:11 f ultrahigh-pressure metamorphic rocks 5:535-536, 5:536/", 5:538, 5:539 Variscides Orogeny 2:75, 2:78, 2:80 volcanic centres 2:120 bokite((Al,Fe) (V,Fe) O o-74H O) 3:589t Bokkeveld Group 3:129, 3:137f bolide impact craters 3:363;, 3:383, 4:95, 4:98f Bolivia 4:208f Bolivian orocline 1:126 Bol'shezemel'skaya Zone 2:52, 2:52f, 2:53f, 2:54f Bolsovian subdivision 4:202f Boltwood, Bernard 3:186 bombs 4:387t, 4:390;, 5:572t Bonaparte Basin 3:129, 3:139 Bonarelli Event 4:497-499 Bona vista platform 4:100, 4:96 f boninites 1:2-3 Book Cliffs, Utah, United States 4:575, 4:576f book gills 2:277 book lice 2:300; bookshelf faulting 5:396, 5:398, S:404f boracite (Mg3B7O13Cl) 3:512*, 3:S12f borax anhydrous (B2O3) 3:519t borax decahydrate (Na2B4O7-10H2O) 3:519; borax (Na2B4O7-10H2O) 3:510, 3:511-512, 3:512^ 3:513;, 3:514 borax pentahydrate (Na2B4O7-5H2O) 3:519; Borborema Plateau, Brazil 1:3 09f, 1:312f Borborema strike-slip system 1:307f, l:315f, 1:323 Borch, Ole 2:226-227 Boreal Basin 4:461 Boreosphenida 2:528f Borneo 4:209, 5:446-447 Bornetella 2:433 Bornholm Island 2:98 bornite (Cu5FeS4) 3:582f, 3:585t, 3:630;, 5:394; boron (B) borates Argentine borate deposits 3:513; chemistry 3:514 commercial borate minerals 3:512; commercial refined borate products 3:519; definition 3:511 depositional environment formation processes 3:516, 3:516f magmatic sources 3:517 marine evaporites 3:517 non-marine basins 3:517 occurrences 3:515 playa lakes 3:516f, 3:516-517 exploration techniquew 3:518 geological environment 3:511, 3:512f global distribution 3:51 If historical background 3:510 life estimates 3:521; mineralogy 3:511, 3:512; mining operations 3:519 origins 3:512f processing techniques 3:519 reserve deposits 3:521; Turkish borate deposits 3:513; uses 3:511, 3:520, 3:520f world production rates 3:52If boric acid (H BO ) 3:519;, 3:519-520 hydrothermal fluids 3:629; mineral classification systems 3:501;, 3:502; oceanic manganese nodular deposits 5:114; soil concentrations 2:22; toxicity 2:22; Boron mining district, United States See ore bodies, borates Boscovich, R 1:98 Bosumtwi Crater 5:445f Bos well, Percy 3:188 Bothnian Basin 2:40, 2:149-150 Bothriocidaris 2:352-353, 2:353f Bothriolepis 2:466 Botoman stage 4:167f Botswana 3:7; Boue, Ami 2:183, 3:178 Bouguer gravity anomaly 1:1 OOf, 1:105f, 2:92-94, 2:93f, 4:67, 4:68f Bouma sequence 4:600, 4:601f Boundary Mountain Terrane 4:83-84 boundary stratotypes 5:504, 5:506f