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all geography including DSDP/ODP Sites and Legs
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Africa
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East Africa
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Ethiopia (1)
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Tanzania
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Olduvai Gorge (1)
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Zambia (1)
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Antarctica
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Slovakia
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Switzerland
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Bern Switzerland
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Chechnya Russian Federation
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Southern Europe
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Bulgaria
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Spain
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Serbia (6)
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Indian Ocean
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Red Sea
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Mediterranean region
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Mexico (1)
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North America
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Appalachians
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geologic age
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Cenozoic
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upper Eocene
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Huber Formation (1)
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Oligocene
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Boom Clay (2)
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Wasatch Formation (1)
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Shahejie Formation (2)
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Mesozoic
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Cretaceous
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Jurassic
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Triassic
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Paleozoic
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Upper Cambrian
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Carboniferous
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Upper Carboniferous
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Devonian (2)
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lower Paleozoic
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Ashe Formation (1)
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Ordovician
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Silurian (1)
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Archean (5)
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upper Precambrian
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Proterozoic
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Mesoproterozoic
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Neoproterozoic
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Paleoproterozoic (3)
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Sinian
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Doushantuo Formation (1)
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Witwatersrand Supergroup (1)
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igneous rocks
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carbonatites (1)
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granite porphyry (1)
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I-type granites (1)
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granodiorites (1)
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pegmatite (2)
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porphyry (2)
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volcanic rocks
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basalts
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ophiolite (1)
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volcanic ash (1)
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metamorphic rocks
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slates (3)
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rutile (3)
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leucosphenite (1)
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pyroxene group
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orthopyroxene
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enstatite (6)
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tobermorite (3)
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wollastonite group
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framework silicates
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cancrinite (3)
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feldspar group
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alkali feldspar
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K-feldspar (3)
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plagioclase
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nepheline group
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scapolite group (5)
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silica minerals
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cristobalite (5)
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tridymite (1)
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sodalite group
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zeolite group
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analcime (2)
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chabazite (6)
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clinoptilolite (39)
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erionite (5)
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thomsonite (1)
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-
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garnierite (1)
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orthosilicates
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britholite group (1)
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garnet group
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almandine (1)
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hydrogarnet (1)
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larnite (1)
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mullite (3)
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olivine group
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forsterite (3)
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olivine (5)
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ringwoodite (1)
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wadsleyite (2)
-
-
zircon group
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zircon (5)
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-
-
sorosilicates
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axinite group (1)
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epidote group
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allanite (1)
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epidote (3)
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zoisite (1)
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-
ilvaite (1)
-
-
-
ring silicates
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beryl (1)
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tourmaline group (1)
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sheet silicates
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cerolite (3)
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chlorite group
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chamosite (3)
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chlorite (40)
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clinochlore (3)
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cookeite (1)
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sudoite (4)
-
-
clay minerals
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allophane (17)
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beidellite (21)
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chrysocolla (3)
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dickite (9)
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halloysite (59)
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hectorite (39)
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hisingerite (1)
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imogolite (9)
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kaolinite (285)
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montmorillonite (369)
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nacrite (2)
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nontronite (35)
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saponite (41)
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smectite (341)
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stevensite (11)
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vermiculite (78)
-
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hydrobiotite (3)
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illite (158)
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magadiite (13)
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mica group
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annite (3)
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biotite (18)
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celadonite (7)
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glauconite (11)
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muscovite (27)
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paragonite (2)
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phengite (3)
-
phlogopite (15)
-
-
palygorskite (58)
-
pyrophyllite (10)
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rectorite (11)
-
sepiolite (50)
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sericite (2)
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serpentine group
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antigorite (3)
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berthierine (7)
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chrysotile (8)
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cronstedtite (4)
-
lizardite (5)
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serpentine (12)
-
-
talc (14)
-
-
-
sulfates
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alunite (2)
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celestine (1)
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ettringite (1)
-
gypsum (4)
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iron sulfates (1)
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jarosite (4)
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schwertmannite (2)
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selenite (1)
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sulfides
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arsenopyrite (1)
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chalcopyrite (2)
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covellite (1)
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galena (1)
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iron sulfides (1)
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marcasite (1)
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orpiment (1)
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pyrite (9)
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pyrrhotite (1)
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realgar (1)
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sphalerite (2)
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tellurides
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calaverite (1)
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sylvanite (1)
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uranium minerals (2)
-
-
Primary terms
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absolute age (8)
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Africa
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East Africa
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Ethiopia (1)
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Tanzania
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North Africa
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Morocco (4)
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Sahara (1)
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Southern Africa
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South Africa
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West Africa
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Cameroon (2)
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Guinea (1)
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Nigeria
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Jos Plateau (1)
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Senegal
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Dakar Senegal (1)
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Antarctica
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Arctic Ocean
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Norwegian Sea
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Haltenbanken (1)
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Arctic region
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asbestos deposits (1)
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Asia
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Arabian Peninsula
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Far East
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Burma (1)
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China
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Indonesia
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Japan
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GeoRef Categories
Era and Period
Epoch and Age
Book Series
Date
Availability
chemical properties
A positive correlation between C/L-band radar backscatter and grain size of coarse alluvial deposits in the Mojave Desert Available to Purchase
Leaching behaviour of arsenic in coal under the action of mine water Available to Purchase
DRASTIC-FS Model for Assessment of Groundwater Vulnerability in Alluvial Region between Mahi and Narmada Rivers, India Available to Purchase
Characteristics of congruent dissolution of silicate minerals enhanced by chelating ligand under ambient conditions Open Access
Rheological properties of magnesium bentonite and sepiolite suspensions after dynamic ageing at high temperatures Open Access
Facile preparation of sepiolite-based composites and their antibacterial/rheological properties Available to Purchase
Isotopic and geochemical characteristics of mid- to-late-Miocene continental and oceanic arc volcanic and intrusive rocks, central North Island and offshore, New Zealand Available to Purchase
Abstract Mid- to late-Miocene continental arc volcanism on the North Island of New Zealand is found in the Coromandel Peninsula, the Kiwitahi volcanic chain and the Taranaki Basin (Kora Volcano) offshore the western margin of the North Island. Coeval oceanic arc volcanism is also found along the offshore Colville Ridge/Kermadec Ridge north of New Zealand. This Pb–Sr–Nd–Hf isotopic study aims to evaluate mantle sources and potential crustal contaminants along these sections of the Miocene arc system. The Colville/Kermadec Ridge and Kora lavas have the lowest Sr (0.7029–0.7045) and highest Nd (0.51305–0.51292) ratios; the Coromandel and Kiwitahi lavas overlap (Sr = 0.704–0.706; Nd = 0.51268–0.51296). The Colville/Kermadec Ridge, Kora, and Coromandel/Kiwitahi rocks form three distinct arrays on Pb–Pb plots, all above the Northern Hemisphere Reference Line, but none trend towards local Mesozoic basement greywackes. Isotopic and trace element ratio variations suggest that subducted sediments are a component in Coromandel/Kiwitahi mafic lava sources. The younger, southern Kiwitahi lavas have a more depleted mantle source than that for the older, northern Kiwitahi chain. Evolved lavas commonly have interacted with Waipapa basement rocks. Kora rocks have compositions similar to those of back-arc lavas and have been emplaced as sills in a rift environment above a distinct subduction-modified mantle.
Production of lightweight expanded aggregates from smectite clay, palygorskite-rich sediment and phosphate sludge Available to Purchase
Fingerprinting the geochemical signals of episodic arc activity in the Sierra Nevada batholith in space and time Open Access
Formation of iron-rich phyllosilicates in the FeO–SiO 2 –H 2 O system during hydrothermal synthesis as a function of pH Available to Purchase
San Albino, Nicaragua: A Low-Angle, Thrust-Controlled Orogenic Gold Deposit Available to Purchase
Natural and pretreated Gördes clinoptilolites for ammonia removal: effect of exchangeable cations (Na + , K + , Ca 2+ and Mg 2+ ) Available to Purchase
Adsorption of atrazine and paraquat on montmorillonite loaded with layered double hydroxide and active site energy distribution analysis Available to Purchase
Soil montmorillonite can exhibit peroxidase-like activity Available to Purchase
Comparison of the antimicrobial and antioxidant properties of halloysite nanotubes and organoclays as green source materials Available to Purchase
Stanevansite, Mg(C 2 H 3 O 3 ) 2 ·2H 2 O, A New Hydrous Glycolate Mineral, from the Santa Catalina Mountains, Tucson, Arizona, USA Available to Purchase
Hydro-acoustic signals from the Panarea shallow hydrothermal field: new inferences of a direct link with Stromboli Available to Purchase
Abstract We present the results from a mid-term monitoring activity carried out at the submarine hydrothermal system located off Panarea Island (Aeolian Islands, Italy). The collected data concern multiparametric information from a self-operating seafloor station (acoustics and chemical–physical parameters) acquiring data at regular intervals and transmitting it twice a day in near real-time. The acoustic records were analysed with the principal aim of investigating bubbling variations related to gas flow rate. Several anomalies have been documented, in the bubbling activity detected at high frequencies (100–2000 Hz), as well as in very low acoustic frequencies, related to fluids dynamic along cracks. An astonishing correlation between soil CO 2 flux emissions recorded at Stromboli craters and the acoustic signals in the 1–30 Hz range has been identified, suggesting how this tectonic link could act as an escape route for fluids characterized by a shared source.