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| Madureira, Pedro, Mata, João, Mattielli, Nadine, Queiroz, Gabriela, Silva, Pedro (2011) Mantle source heterogeneity, magma generation and magmatic evolution at Terceira Island (Azores archipelago): Constraints from elemental and isotopic (Sr, Nd, Hf, and Pb) data. Lithos, 126 (3) 402-418 doi:10.1016/j.lithos.2011.07.002 | Journal (article/letter/editorial) | | magma generation and magmatic evolution at Terceira
Island (Azores archipelago): Constraints from elemental...2011
Keywords:
Ocean Island Basalts
Small-scale mantle heterogeneity
Terceira Island
Azores
a b s t r a...study of
two active volcanic systems from Terceira Island. Our study shows that mantle heterogeneities are...
doi:10.1016/j.lithos.2011.07.002
The Azores islands, located on the Azores Plateau and close to the...which are evident either from the study of a single
island (Terceira: Dupré et al., 1982; S. Miguel: Beier | 👁 Image
| | Journal (article/letter/editorial) | | minerals (garnet, kaersutite, jadeite, orthoclase,
chromite, spinel, tephroite, gahnite, samarskite)
have...Peninsula, USSR (Borodin et al.,
1960), Santiago island, Cape Verde Republic (Silva
and Figueiredo, 1980) | 👁 Image
| Koleszar, A.M., Saal, A.E., Hauri, E.H., Nagle, A.N., Liang, Y., Kurz, M.D. (2009) The volatile contents of the Galapagos plume; evidence for H2O and F open system behavior in melt inclusions. Earth and Planetary Science Letters, 287 (3) 442-452 doi:10.1016/j.epsl.2009.08.029 | Journal (article/letter/editorial) | | and the MORB-like (Santiago Is.) mantle components. Melt inclusions from both
islands have a large range...2750 m of water depth from a submarine flank of the
island of Fernandina, representing the high 3He/4He mantle...ITE-depleted basalt from a subaerial
hornito of the island of Santiago (White et al., 1993), which closely
resembles...two exceptions having Mg# of 82 and 85, in the Santiago lava. In
both samples, the Mg# of the olivines...equilibrium (Mg# 78 and 82 for Fernandina
and Santiago olivines respectively), indicating clear FeO–MgO | 👁 Image
| | Journal (article/letter/editorial) | | production rate of 36Cl on
Fuerteventura, Canary Islands, Spain
Platinum-group elements in mantle
xenoliths...position and presence of basaltic lava
flows the island of Fuerteventura was chosen by CRONUSEU to serve...36Cl calibration site. Young basalts from this
island are analysed to better constrain scaling factors...into site specific production
rates of 36Cl at the island of Fuerteventura. This will help in
future to better...Chicoutimi, Canada
(sjbarnes@uqac.ca)
5
University of Cape Town, South Africa
(John.Gurney@minserv.co.za)
6 | 👁 Image
| | Journal (article/letter/editorial) | | Portugal (maria.gp.queiroz@azores.gov.pt)
Terceira Island mafic lavas (< 30 ka), erupted from two
main active... which
dominates the western topography of the island. These mafic
lavas present a significant elemental...for coeval lavas
outcropping in the neighbouring islands of Pico and S. Miguel,
the later also formed in...Rift) and, also, at the scale of an
individual island.
1
Idaho State University, Pocatello ID (magntimo@isu...(41-797 ppm) and Ni (11-254 ppm) than those of normal
island arc andesites. Their La/Yb ratios are 9.87 – 22 | 👁 Image
| | Journal (article/letter/editorial) | | tectonic settings,
from the the mid-ocean ridges, to island arcs and continetal
magmatism.
Verification attempts...derived from
Tobífera rocks that compose the Cerro Verde thrust sheet of
the Fuegian hinterland. These data...we favor a depositional environment
in a shallow island-arc/back-arc basin.
Although most workers [1],...overprinted by gas-melt fractionation of Ra-Rn. For ocean
island basalts to carry such a signature, source to surface...a selected group of mantle xenoliths from Cape Verde
Island, which clearly show textural and geochemical | 👁 Image
| | Journal (article/letter/editorial) | | Washington DC 20015
1
Ocean island basalt (OIB) lavas from Mangaia, Cook
Islands (Polynesia) exhibit an extreme...olivine-hosted sulfides from 20-million-year-old
ocean island basalts from Mangaia (most extreme "33S
measurement...hotspots.
805
Heavy metals of the Santiago Island
(Cape Verde) topsoils
CABRAL PINTO, M.M.S.123,*,...(*marinacp@ci.uc.pt)
3
University Jean Piaget, Santiago Island, Cape Verde
1
2
In this work we present maps of...Hg,
Mn, Ni, Pb, V, Zn) in the soils of the Santiago Island and
analyse their relationships with the geological | 👁 Image
| | Report (issue) | | WILLIAMS
Geology and Petrology
of the Galdpagos Islands
Sr
THE
GEOLOGICAL
OF AMERICA
SOCIETY
be
from...from
in
Geology and Petrology
of the Galdpagos Islands
A. R. MCBIRNEY
University of Oregon
Eugene, Oregon...and show
little evidence of differentiation.
The islands were never connected to
the mainland of South or...
GEOLOGY
OF THE
AND
PETROLOGY
GALAPAGOS
ISLANDS
The
Geological
Society
Memoir
of America...
118
Geology and Petrology
of the Galapagos Islands
A. R. MCBIRNEY
University
of Oregon
Eugene, | 👁 Image
| | Book (volume) | | Saare Island (Estonia)
USE
Saaremaa Island (Estonia)
Saaremaa Island (Estonia)
UF
Ezel Island (Estonia)...(Estonia)
Insel Osel (Estonia)
Oesel Island (Estonia)
Osel Island (Estonia)
Ostrov Ezel' (Estonia)
Ostrov...(Estonia)
Saare Island (Estonia)
Saarenmaa Island (Estonia)
Samu sala (Estonia)
Sarema Island (Estonia)
...sala (Estonia)
BT
Islands
—Estonia
Saarenmaa Island (Estonia)
USE Saaremaa Island (Estonia)
Saarinen...Saba (Netherlands Antilles)
Islands
— Netherlands Antilles
Leeward Islands (West Indies)
BT Massim (Papua | 👁 Image
| | Journal (volume) | | J.3
Centre for Minerals Research, University of Cape Town, South
Africa (*megan.becker@uct.ac.z)
2
Dept...distinct mineral
inclusions. Chromium pyrope or chromite inclusions, which are
representing more than one...between
diamond [111] and chromium pyrope [111] or chromite [111]
showed relatively small misalignments up...to 3.4°
between diamond and chromium pyrope, or chromite
inclusions. The chromium diopside and olivine...inclusions of cubic phases (i.e., chromium pyrope and
chromite) exhibit a relatively similar orientation to their | 👁 Image
| | Book | | kind of
2
volcanism that occurs in the Hawaiian Islands or at Mount St. Helens.
The mineral world
Rather...Examples of these kinds of names are
anglesite for the island of Anglesey off the coast of Wales,
aragonite for...metamorphosed. The ex¬
posure is in the 30,000 Island district of
Georgian Bay, Ontario. (Photograph...granites, and gravels
Plate 25. Diamond Head, Island of Oahu, Hawaii. (Photo£rraph by R. V. Dietrich)...stones, no two of which are alike, picked up on an island in
northern Lake Michipjan. (Photograph by R. V | 👁 Image
| | Book (edition) | | Editor-in-Chief
Haraldur Sigurdsson
University of Rhode Island, U.S.A.
Associate Editors
Bruce F. Houghton
Institute...James D. L. White
Claude Jaupart
Seamounts and Island Building
383
Ralf Schmidt and Hans-Ulrich Schmincke...Yoshimoto
Volcaniclastic Sedimentation
around Island Arcs
Manfred P. Hochstein and
Patrick R. L. Browne...Intervention
1229
Volcaniclastic Sedimentation Around
Island Arcs
627
Scoria Cones and Tuff Rings
683
Volcanism...Volcanism and Biotic Extinctions
1083
Seamounts and Island Building
383
Volcanism on Io
709
Seismic Monitoring |
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