Page 210 - Volcanic Textures A Guide To The Interpretation of Textures In Volcanic Rocks

quench crystal 21, 23, 24, 69, 20 slide deposit 114-115, 36.4
quench fracture 24, 26, 31, 33, 56, 166 snowflake texture see micropoikilitic texture
quench fragmentation 22, 27, 28, 53, 54-56, 57, 58, 61, 65, 96 Sock Creek South, western Tasmania 66, 31, 32, 33.1-2
radial columnar joint see joint Socompa volcano, Chile 114-115, 36.4-6
ramp structure 66 spatter 95
reaction rim 21 spherulite (see also devitrification) 3, 15, 24-25, 69, 103, 166-
resedimented syn-eruptive volcaniclastic deposit 1, 2, 3, 8, 22, 167, 2, 9, Table 1, 3.1-6, 8.1-2, 25.2-3, 44.3-7
28, 94, 96-97, 98, 114, 1, 4, 59, Table 4, 29.4, 30, spinifex texture 23
31, 33.1-2, 34.5, 41 spreading crack 58, 23, 15.3, 15.7, 17.1
definition 94, 1 steam explosion (see also phreatic eruption) 57, 58
resedimented autoclastic 54, 55, 65-66, 97, 4, 31, 32, strombolian eruption (see also explosive eruption) 95
Table 3, 11.8, 18.4, 37.1-5 stylolitic dissolution foliation (see also diagenetic compaction) 169,
resedimented pyroclastic 28, 29, 30, 56, 65, 96-97, 30.1, 46.1
105, 107-108, 4, 44, Table 3, 7.7, 29, 30, 31, subaerial lava
33.5, 34.5, 41 andesitic 71, 36, 10.5-6, 19.5
resorption of phenocryst 21, 166 basaltic 23, 69-70, 17, 34, 35, 9.5, 19.3, 19.6-7
reticulite 27 dacitic 66-69, 33, 10.4, 19.4
rheomorphic see pyroclastic deposit rhyolitic 66-69, 33, 2.1, 3.1-3, 8.2, 19.1-2, 20, 44.3
rhyolite (see also lava) silicic (see also dacite, rhyolite) 66-69, 33
flow direction 16 subaerial mass-flow deposit see mass-flow deposit
hyaloclastite 11.1-3, 42.2-4, 43.1 subaqueous lava
subaerial 66-69, 33, 2.1, 3.1-3, 8.2, 19.1-2, 20, 44.3 andesitic 71, 19, 25 , 9.2-3, 11.4, 15.1, 16.2, 17.6
subaqueous 61-65, 26, 27, 28, 29, 30, 4, 5.1, 8.1, basaltic 23, 60-61, 25, 35, 2.2, 9.4, 15.2-7, 16.1, 17.2-4
11.1-3, 18, 44.4-6 dacitic 66, 31, 32, 8.4-5, 8.7, 11.5-7, 42.7, 44.1, 44.7
rhyolitic glass see silicic glass rind 59, 15.7, 16.1, 17.2 rhyolitic 61-65, 26, 27, 28, 29, 30, 4, 5.1, 8.1, 11.1-3, 18,
ropy wrinkle 58, 23, 15.2-3, 15.7, 16.2 44.4-6
Rosebery-Hercules mineralisation 17, 165, 168-169, 13, 46.6 silicic (see also dacite, rhyolite) 26, 61-66, 26, 27, 28, 29,
saltation (see also traction transport and deposits) 111, 117, 120 31,32
scoria 27, 96, 6.6-7, 39.7-8 subaqueous mass-flow deposit see mass-flow deposit
scoria and ash flow deposit see pyroclastic flow deposit subaqueous pyroclastic flow deposit see pyroclastic flow deposit
surge see pyroclastic surge deposit
scoria fall deposit see pyroclastic fall deposit suspension transport and deposits 15, 98, 117, 120-122, 48, 58,
sedimentary structure 15, 97, 117-118, 119, 122, 54, 55, 57, 59, Table 4, 39, 40.1-2, 40.4-7, 41
59, Table 2, 38, 40 associated with subaqueous mass flow 121-122, 29.1,
cross stratification 15, 117-118, 54, 55, 28.6, 38.1-2, 40.2, 40.4
38.4-6, 40.5, 40.8, 41.3 pyroclastic fall deposit 120-121, 58, 39
graded bedding 15, 108, 109, 114, 120-122, 44, 45, 49, water-settled 30, 121, 168, 48, 59, 18.7, 28.3, 29.1,
51, 29.3-4, 30, 31, 32.1, 34, 37.1, 41.1-2, 40.1, 40.6, 41, 45.1
45.1
hummocky cross stratification 117-118, 122-123, 55, 28.1 syn-sedimentary sill 57-58, 60, 64-65, 22, 24, 30
syn-volcanic intrusion (see also sill, feeder dyke, cryptodome) 2, 3,
mantle bedding 120, 58, 39.1 7, 12, 15, 21, 22, 24, 25, 26, 53-71, 1, 2, 29, 30
planar bedding 117-118, 120, 121, 54, 29.2, 38.8, alteration 166-168
39.2, 40.5-7 tachylite23, 59, 16.1
ripple 117, 54, 28.3, 38.3, 40.6-7 talus 54, 61, 69, 71, 114, 33, 36, 48, 10.4, 10.6, 19.1-2
sandwave 117, 5457,38.7 tectonic deformation 22, 30, 165, 167-169
tractional 117-119, 5, 54, 55, 57, 38 tensional crack 58, 23, 17.1
sedimentation terminology 7, 94
environments 97, 105, 113, 118, 119, 120, 122-123, descriptive Table 1, Table 2
59 genetic 7, 94, Table 3
transport and deposition 94, 97, 109, 117-118, 122- lithofacies 7, 12, Table 1, Table 2
123, 46, 47, 48, 59, Table 4 lithological 7, 12
sediment gravity flow see mass flow deposit textural evolution 1, 165-166
shard 15, 28-29, 96, 168-169, 3, Table 2, 2.5-6, 7.1-3, 23.1- thermal oxidation 100, 6.6, 10.5, 19.3, 39.4, 39.7
4, 24.4, 25.3-6, 27, 29.4, 30.1 "tiny normal joint" see joint
sheet flow see lava
toothpaste lava 70
shelly pahoehoe see pahoehoe tortoise shell joint see joint
sideromelane 23, 28, 59, 2.5, 16.1 trachytic texture 2.4, 8.8, 29.2
siliceous nodule 28.4 silicic glass (see also obsidian) 24, 25 traction transport and deposits 15, 28, 98, 111-112, 117-120,
silicic lava (see also dacite, lava, rhyolite) 122, 59, Table 4, 38,40.5-8
subaerial 66-69, 33 tractional sedimentary structure see sedimentary structure
subaqueous 61-66, 26, 27, 28, 29, 31, 32 transport and deposition (see also sedimentation) 94, 97, 109,
sill 1, 23, 30, 31, 32, 53, 57-58, 60, 64-65, 2, 22, 24, 30 117-118, 122-123, 46, 47, 48, 49, 59, Table 4
simple cooling unit 103, 42 tube pumice see pumice
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