spectra
Scope Notes: This term is used for data from spectroscopic studies of chemical samples. See spectroscopy for methods; Fourier analysis or frequency domain analysis for mathematical techniques; or spectral analysis for geophysical methods including seismic methods.
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Stone Age
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Tertiary
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Florissant Lake Beds (3)
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Neogene
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upper Miocene
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Pliocene
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Paleogene
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Eocene
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Oligocene
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K-T boundary (1)
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Renova Formation (1)
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Mesozoic
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Cretaceous
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Dakota Formation (1)
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Upper Cretaceous
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Eagle Ford Formation (1)
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Hell Creek Formation (1)
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Tuolumne Intrusive Suite (3)
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Jurassic
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lower Mesozoic (1)
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Paleozoic
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Acatlan Complex (4)
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Ordovician
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Llandovery (1)
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upper Paleozoic
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Dwyka Formation (1)
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Precambrian
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upper Precambrian
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Paleoproterozoic (2)
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Sinian
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Vindhyan (1)
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igneous rocks
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porphyry
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ophiolite (6)
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marbles (2)
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framework silicates
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orthosilicates
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zircon group
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zircon (68)
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sorosilicates
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epidote group
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sheet silicates
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illite (1)
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sulfates
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sulfides (2)
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tungstates
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wolframite (1)
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-
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Primary terms
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absolute age (95)
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Africa
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Far East
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atmosphere (3)
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boron
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carbon
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Caribbean region
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Cenozoic
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Quaternary
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upper Pleistocene
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Stone Age
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Tertiary
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Florissant Lake Beds (3)
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Neogene
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upper Miocene
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Pliocene
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Paleogene
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Oligocene
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Paleocene
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Renova Formation (1)
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Central America
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Deep Sea Drilling Project
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IPOD
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Leg 74
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Leg 95
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isotopes
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radioactive isotopes
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C-14 (4)
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Pb-206/Pb-204 (7)
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Pb-207/Pb-204 (4)
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Pb-208/Pb-204 (4)
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-
stable isotopes
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B-11/B-10 (1)
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C-13/C-12 (4)
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D/H (1)
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He-4/He-3 (1)
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Hf-177/Hf-176 (2)
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N-15/N-14 (1)
-
Nd-144/Nd-143 (15)
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O-18/O-16 (7)
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Os-188/Os-187 (1)
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Pb-206/Pb-204 (7)
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Pb-207/Pb-204 (4)
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Pb-208/Pb-204 (4)
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S-34/S-32 (1)
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Si-29 (1)
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Sr-87/Sr-86 (17)
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-
-
land subsidence (1)
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lava (10)
-
limestone deposits (1)
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lineation (1)
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magmas (27)
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Malay Archipelago
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Borneo
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Kalimantan Indonesia (1)
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-
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mantle (11)
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maps (2)
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Mediterranean region
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Aegean Islands
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Greek Aegean Islands
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Cyclades
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Milos (1)
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Thera (1)
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-
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Mediterranean Sea
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East Mediterranean
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Black Sea (1)
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-
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Mesozoic
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Cretaceous
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Dakota Formation (1)
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Lower Cretaceous (1)
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Nenjiang Formation (1)
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Qingshankou Formation (1)
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Upper Cretaceous
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Gulfian
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Eagle Ford Formation (1)
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Hell Creek Formation (1)
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K-T boundary (1)
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Maestrichtian (1)
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Tuolumne Intrusive Suite (3)
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-
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Jurassic
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Coast Range Ophiolite (1)
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Lower Jurassic
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Talkeetna Formation (1)
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Middle Jurassic (2)
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Upper Jurassic
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Brushy Basin Member (1)
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Galice Formation (2)
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Josephine Ophiolite (2)
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Morrison Formation (1)
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Portlandian (1)
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Salt Wash Sandstone Member (1)
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Sundance Formation (1)
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Tithonian (3)
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-
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lower Mesozoic (1)
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Triassic
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Lower Triassic (1)
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Middle Triassic (1)
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Red Peak Formation (1)
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Shublik Formation (1)
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Upper Triassic (2)
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upper Mesozoic (1)
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metal ores
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copper ores (5)
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gold ores (3)
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lead ores (2)
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lead-zinc deposits (2)
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manganese ores (1)
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molybdenum ores (2)
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polymetallic ores (1)
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tungsten ores (1)
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uranium ores (1)
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vanadium ores (1)
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zinc ores (2)
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-
metals
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alkaline earth metals
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calcium (1)
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strontium
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Sr-87/Sr-86 (17)
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-
-
aluminum (1)
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chromium (1)
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cobalt (1)
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hafnium
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Hf-177/Hf-176 (2)
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-
iron
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ferric iron (2)
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ferrous iron (2)
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-
lead
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Pb-206/Pb-204 (7)
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Pb-207/Pb-204 (4)
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Pb-208/Pb-204 (4)
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-
manganese (1)
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nickel (2)
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platinum group
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osmium
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Os-188/Os-187 (1)
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-
-
rare earths
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cerium (1)
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europium (2)
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lanthanum (1)
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lutetium (1)
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neodymium
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Nd-144/Nd-143 (15)
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-
samarium (1)
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ytterbium (1)
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-
tin (1)
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-
metamorphic rocks
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amphibolites (2)
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eclogite (2)
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gneisses
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orthogneiss (5)
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paragneiss (5)
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tonalite gneiss (1)
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-
granulites (5)
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impactites
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impact breccia
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suevite (2)
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-
-
marbles (2)
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metaigneous rocks
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metabasite (1)
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metadiabase (1)
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metagabbro (2)
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metagranite (1)
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serpentinite (1)
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-
metasedimentary rocks
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metapelite (1)
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metasandstone (1)
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paragneiss (5)
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-
metasomatic rocks
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serpentinite (1)
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skarn (1)
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-
metavolcanic rocks (4)
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migmatites (3)
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mylonites
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pseudotachylite (3)
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-
phyllonites (1)
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schists (1)
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-
metamorphism (37)
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metasomatism (12)
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meteorites
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Allan Hills Meteorites (1)
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stony meteorites
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achondrites (1)
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chondrites
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ordinary chondrites (1)
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-
-
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Mexico
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Baja California (1)
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Coahuila Mexico (1)
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La Popa Basin (1)
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Puebla Mexico (2)
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Sierra Madre Oriental (1)
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Tamaulipas Mexico (1)
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-
mineral deposits, genesis (6)
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mineral exploration (1)
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nitrogen
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N-15/N-14 (1)
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-
noble gases
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helium
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He-4/He-3 (1)
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-
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North America
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Appalachians
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Blue Ridge Province (6)
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Central Appalachians (2)
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Hudson Highlands (1)
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Northern Appalachians (1)
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Piedmont (4)
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Southern Appalachians (4)
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Valley and Ridge Province (1)
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-
Basin and Range Province (1)
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Canadian Shield
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Churchill Province
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Rae Province (1)
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-
Grenville Province (1)
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Superior Province (2)
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Grenville Front (1)
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Gulf Coastal Plain (1)
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North American Cordillera (5)
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Peninsular Ranges Batholith (6)
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Rio Grande Rift (2)
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Rocky Mountains
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U. S. Rocky Mountains
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San Juan Mountains (1)
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Sangre de Cristo Mountains (1)
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-
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Western Interior (1)
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Yukon-Tanana Terrane (1)
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-
Ocean Drilling Program
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Leg 165 (1)
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-
oil and gas fields (1)
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orogeny (8)
-
oxygen
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O-18/O-16 (7)
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-
Pacific Coast (1)
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Pacific Ocean
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East Pacific
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Cocos Ridge (1)
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Galapagos Rift (1)
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Northeast Pacific
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Gulf of Panama (1)
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-
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North Pacific
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Northeast Pacific
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Gulf of Panama (1)
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South Pacific
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Southwest Pacific
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Java Sea (1)
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West Pacific
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Indonesian Seas
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Java Sea (1)
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Southwest Pacific
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Java Sea (1)
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Sunda Shelf (1)
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paleobotany (1)
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paleoclimatology (3)
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paleoecology (2)
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paleogeography (18)
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paleomagnetism (2)
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paleontology (1)
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Paleozoic
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Acatlan Complex (4)
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Bucksport Formation (1)
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Cambrian
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Acadian (1)
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Kanmantoo Group (1)
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Lower Cambrian (5)
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Middle Cambrian (1)
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Semri Series (1)
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Upper Cambrian (1)
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Cape Elizabeth Formation (1)
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Carboniferous
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Mississippian
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Rampart Group (1)
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Pennsylvanian (1)
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Upper Carboniferous (3)
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Casco Bay Group (1)
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Devonian (5)
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lower Paleozoic
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Berwick Formation (1)
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Chopawamsic Formation (1)
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Merrimack Group (1)
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Ordovician
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Lower Ordovician
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Arenigian
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Ballantrae Complex (1)
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-
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Middle Ordovician (1)
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Miramichi Group (1)
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-
Permian
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Lower Permian (1)
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Upper Permian (1)
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Silurian
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Lower Silurian
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Llandovery (1)
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-
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upper Paleozoic
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Dwyka Formation (1)
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-
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palynomorphs
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acritarchs (1)
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miospores
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pollen (2)
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-
-
paragenesis (1)
-
petroleum (5)
-
petrology (14)
-
phase equilibria (2)
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placers (1)
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Plantae
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algae
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diatoms (2)
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nannofossils (1)
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Pteridophyta (1)
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Spermatophyta
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Angiospermae
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Dicotyledoneae (1)
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-
Gymnospermae
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Coniferales
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Cupressaceae (1)
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-
-
-
-
plate tectonics (28)
-
pollution (2)
-
Precambrian
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Archean
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Mesoarchean (1)
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Neoarchean (5)
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Paleoarchean (3)
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Warrawoona Group (2)
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upper Precambrian
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Proterozoic
-
Dedham Granodiorite (1)
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Mesoproterozoic
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Belt Supergroup (1)
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Neoproterozoic
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Cryogenian (2)
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Dengying Formation (1)
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Doushantuo Formation (3)
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Ediacaran (5)
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Sturtian (1)
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Vendian (2)
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-
Paleoproterozoic (2)
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Pocatello Formation (1)
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Sinian
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Dengying Formation (1)
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Doushantuo Formation (3)
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-
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-
problematic fossils
-
problematic microfossils (3)
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-
remote sensing (10)
-
sea water (3)
-
sea-level changes (4)
-
sedimentary rocks
-
carbonate rocks
-
dolostone (1)
-
limestone (3)
-
-
chemically precipitated rocks
-
chert (1)
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evaporites
-
salt (2)
-
-
iron formations
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banded iron formations (2)
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-
-
clastic rocks
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black shale (1)
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conglomerate (2)
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diamictite (1)
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mudstone (2)
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