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EARTH AND PLANETARY SCIENCE LETTERS, ISSN 0012-821X, 05/2011, Volume 305, Issue 1-2, pp. 226 - 234
New helium isotope and abundance measurements are reported for olivine and clinopyroxene phenocrysts from HIMU-type (high-mu=elevated U-238/Pb-204) lavas and... 
La Palma | NOBLE-GAS | helium isotopes | GEOTHERMAL FLUIDS | MANTLE PLUME | HIMU | ocean island basalts | El Hierro | LA-PALMA | VOLCANIC-ROCKS | OS ISOTOPE SYSTEMATICS | MAGMA ASCENT | OXYGEN | GEOCHEMISTRY & GEOPHYSICS | Canary Islands | RECYCLED OCEANIC LITHOSPHERE | HELIUM
Journal Article
SCIENTIFIC REPORTS, ISSN 2045-2322, 08/2019, Volume 9
On May 1, 2018, a magnitude 5.0 earthquake heralded the collapse of the Pu'u O'o Vent on the middle East Rift Zone (ERZ) of Kilauea Volcano, active since 1983.... 
VARIABILITY | ISLAND | MULTIDISCIPLINARY SCIENCES | BASALTS | HELIUM-ISOTOPES | LOIHI SEAMOUNT
Journal Article
NATURE, ISSN 0028-0836, 07/2003, Volume 424, Issue 6944, pp. 57 - 59
The high He-3/He-4 ratio of volcanic rocks thought to be derived from mantle plumes is taken as evidence for the existence of a mantle reservoir that has... 
NOBLE-GASES | EARTH | MULTIDISCIPLINARY SCIENCES | SYSTEMATICS | BAY LAVAS | CONSTRAINTS | WEST GREENLAND | COMPONENT | HELIUM | NORTHWEST ICELAND | LEAD
Journal Article
by Kim, JE and Yang, I and Kim, JS
BULLETIN OF THE KOREAN CHEMICAL SOCIETY, ISSN 1229-5949, 10/2018, Volume 39, Issue 10, pp. 1180 - 1185
The He-3/He-4 ratio in the atmosphere is known to be 1.34 x 10(-6). For accurate measurement of low He-3 concentrations, a certified reference material (CRM)... 
Helium isotope reference mixture | Secondary electron multiplier | Mass discrimination factor | Quantification of helium isotopes | REDETERMINATION | AIR | Gas mass spectrometer | CHEMISTRY, MULTIDISCIPLINARY | Gravimetric preparation
Journal Article
EARTH AND PLANETARY SCIENCE LETTERS, ISSN 0012-821X, 05/2008, Volume 269, Issue 1-2, pp. 175 - 185
A key requirement for any model of mantle evolution is accounting for the high He-3/He-4 ratios of many ocean island basalts compared to those of mid-ocean... 
NOBLE-GASES | He isotopes | EARTHS MANTLE | ocean island basalts | MODEL | ATMOSPHERE | CONTINENTAL-CRUST | PRIMORDIAL HELIUM | GEOCHEMISTRY & GEOPHYSICS | SYSTEMATICS | noble gases | CONSTRAINTS | mantle evolution | HELIUM-ISOTOPES
Journal Article
JOURNAL OF ASIAN EARTH SCIENCES, ISSN 1367-9120, 09/2013, Volume 73, pp. 95 - 102
A linear zone with high strain rates along the Japan Sea coast, the Niigata-Kobe Tectonic Zone (NKTZ), is considered to be associated with theological... 
FLUIDS | NOBLE-GASES | GEOGRAPHICAL-DISTRIBUTION | TECTONICS | CRUSTAL DEFORMATION | ISLANDS | High strain rate zone | NORTHEAST JAPAN | Helium isotope | MANTLE | GEOSCIENCES, MULTIDISCIPLINARY | NIIGATA PREFECTURE EARTHQUAKE | PLATE
Journal Article
GEOCHIMICA ET COSMOCHIMICA ACTA, ISSN 0016-7037, 03/2015, Volume 153, pp. 116 - 133
New helium isotope and trace-element abundance data are reported for pyroxenites and eclogites from South Africa, Siberia, and the Beni Bousera Massif, Morocco... 
GEOCHEMISTRY & GEOPHYSICS | NOBLE-GASES | MANTLE BENEATH | COSMOGENIC HELIUM | NEWER VOLCANICS | GEOTHERMAL FLUIDS | RE-OS ISOTOPE | OCEAN ISLAND BASALTS | HE-3/HE-4 RATIOS | BOUSERA PERIDOTITE MASSIF | SOUTHEASTERN AUSTRALIA
Journal Article
CHEMICAL GEOLOGY, ISSN 0009-2541, 02/2013, Volume 340, pp. 13 - 20
We measured He-3/He-4 ratios in hot spring gases collected from sites in north Kyushu, Japan that represent an island arc setting associated with the... 
Hot spring | GASES | Kyushu | Isotope | NORTHEASTERN JAPAN | SW JAPAN | Fluid | SUBDUCTION | CURRENT PLATE MOTIONS | TOMOGRAPHIC EVIDENCE | Helium | GEOCHEMISTRY & GEOPHYSICS | SOUTHWEST JAPAN | Beppu-Shimabara Graben | ARC MAGMATISM | BENEATH
Journal Article
EARTH AND PLANETARY SCIENCE LETTERS, ISSN 0012-821X, 03/2003, Volume 208, Issue 3-4, pp. 197 - 204
The existence of a primordial, undegassed lower mantle reservoir characterized by high concentration of He-3 and high He-3/He-4 ratios is a cornerstone... 
He isotopes | lower mantle | plumes | LITHOSPHERIC MANTLE | STATISTICS | upper mantle | HETEROGENEITY | GEOCHEMISTRY & GEOPHYSICS | SEAMOUNTS | SYSTEMATICS | ABYSSAL PERIDOTITES | GEOCHEMISTRY | OSMIUM | Os isotopes | HELIUM-ISOTOPES | SOUTHEAST INDIAN RIDGE
Journal Article
PURE AND APPLIED GEOPHYSICS, ISSN 0033-4553, 04/2006, Volume 163, Issue 4, pp. 745 - 757
We have collected 34 hot spring and mineral spring gases and waters in the Chugoku and Kansai districts, Southwestern Japan and measured the He-3/He-4 and... 
CENOZOIC BASALTS | GASES | TECTONICS | helium isotopes | SW JAPAN | VOLCANIC-ROCKS | Philippine Sea plate | MANTLE | magma source | GEOCHEMISTRY & GEOPHYSICS | subduction | ARC | SUBDUCTING SLAB | DEHYDRATION | HELIUM-ISOTOPES
Journal Article
GEOCHEMICAL JOURNAL, ISSN 0016-7002, 2008, Volume 42, Issue 1, pp. 51 - 60
The He-3/He-4 ratios (Ra) of natural gas, volcanic fluid, and groundwater are compiled in the Japanese Islands and their geographical distributions are... 
NORTHEASTERN JAPAN | helium isotopes | OCEANIC BASALTS | SUBDUCTION ZONES | MANTLE WEDGE | geotectonics | VOLCANIC-ROCKS | HELIUM ISOTOPE RATIOS | FORE-ARC REGION | KII PENINSULA | GEOCHEMISTRY & GEOPHYSICS | SOUTHWEST JAPAN | HIGH HE-3 EMANATION | Japanese islands | seismic tomography | arc magma
Journal Article
GEOLOGY, ISSN 0091-7613, 04/2006, Volume 34, Issue 4, pp. 273 - 276
The depth of origin of kimberlite magmas remains controversial. Hypothesized sources include the asthenosphere, the lower part of the upper mantle, and the... 
NOBLE-GAS | EVOLUTION | GEOLOGY | He-3/He-4 ratio | lower mantle | EARTHS MANTLE | kimberlite | PLUMES | CONSTRAINTS | COMPONENT | source | ocean-island basalt
Journal Article
CHEMICAL GEOLOGY, ISSN 0009-2541, 01/2018, Volume 476, pp. 280 - 291
The Juan Fernandez Islands in the southeastern Pacific are an atypical linear volcanic chain that exhibits a considerable range in He-3/He-4 ratios (8 to 18... 
Sr-Nd-Pb isotopes | HE-3/HE-4 RATIOS | HIMU | GLOBAL CORRELATIONS | Isotope decoupling | GEOCHEMISTRY & GEOPHYSICS | ORIGIN | AXIAL DEPTH | ISLAND | Mantle plume | PICRITIC BASALTS | Juan Fernandez | PLATE | He-3/He-4 | RIDGE BASALT CHEMISTRY | HELIUM | FOZO
Journal Article
EARTH AND PLANETARY SCIENCE LETTERS, ISSN 0012-821X, 09/2015, Volume 426, pp. 305 - 315
The massive outpourings of Karoo and Ferrar continental flood basalts (CFBs) similar to 180 Ma ago mark the initial Jurassic rifting stages of the Gondwana... 
DYKE SWARM | large igneous province | helium isotopes | SOUTHWEST INDIAN RIDGE | EARTHS MANTLE | ISOTOPE SYSTEMATICS | HE-3/HE-4 RATIOS | EAST ANTARCTICA | TRACE-ELEMENT | GEOCHEMISTRY & GEOPHYSICS | Karoo | FLOOD-BASALT GENESIS | TRIPLE JUNCTION | continental flood basalts | mantle source | DRONNING MAUD LAND
Journal Article
Chemical Geology, ISSN 0009-2541, 02/2013, Volume 339, pp. 71 - 83
In the western Eger Rift (ER) area along the Počatky–Plesná fault zone (PPZ) CO degassing occurs predominantly within two mofette fields Bublák and Hartoušov.... 
CO2 flux | Eger Rift | Soil gas | 3He/4He ratios | Magmatic CO2 | flux | Magmatic CO | BOHEMIAN MASSIF | CENTRAL-EUROPE | FLUX MEASUREMENTS | BENEATH MAMMOTH MOUNTAIN | GEOCHEMISTRY & GEOPHYSICS | UPPER-MANTLE | CO2 flux, He-3/He-4 ratios | EARTHQUAKE SWARMS | WESTERN EGER RIFT | SOIL CO2 | CARBON-DIOXIDE | ISOTOPIC COMPOSITION
Journal Article
EARTH AND PLANETARY SCIENCE LETTERS, ISSN 0012-821X, 02/2003, Volume 206, Issue 3-4, pp. 509 - 528
He-3/He-4 ratios and total helium concentrations have been measured in a suite of basalt glasses from the ultra-slow spreading (0.8 cm/yr half-rate) western... 
MIGRATING MIDOCEAN RIDGES | BOUVET TRIPLE JUNCTION | MANTLE PLUMES | SPREADING RIDGE | geochemistry | HELIUM ISOTOPE GEOCHEMISTRY | GRAVITY-ANOMALIES | Southwest Indian Ridge | CURRENT PLATE MOTIONS | GEOCHEMISTRY & GEOPHYSICS | REYKJANES RIDGE | MID-ATLANTIC RIDGE | Helium isotopes | GAS SYSTEMATICS | Bouvet plume
Journal Article
EARTH AND PLANETARY SCIENCE LETTERS, ISSN 0012-821X, 11/2003, Volume 216, Issue 1-2, pp. 221 - 230
A total of 27 well gas samples collected from SW Japan were subjected to precise analysis of He, Ne and Ar isotopic compositions. The sampling area covers... 
NOBLE-GASES | well gases | slab dehydration | NEW-ZEALAND | noble gas | MANTLE WEDGE | XENOLITHS | GEOCHEMISTRY & GEOPHYSICS | subduction | SOUTHWEST JAPAN | CRUST | ARC | NANKAI SUBDUCTION ZONE | EARTHQUAKES | He-3/He-4 | HELIUM
Journal Article
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, ISSN 1525-2027, 01/2005, Volume 6
[1] In isotope studies of magmatic systems, magmatic He is preferentially extracted by crushing minerals under vacuum, whereas cosmogenic and/ or radiogenic He... 
MANTLE PLUMES | NOBLE-GASES | and mantle plumes | geochronology : instruments and techniques | BASALTS | VOLCANIC-ROCKS | plume | ISOTOPE GEOCHEMISTRY | geochronology : cosmogenic-nuclide exposure | dating tectonophysics : dynamics : convection currents | GEOCHEMISTRY & GEOPHYSICS | SW Japan | ISLAND | COMPONENT | cosmogenic He-3 | HELIUM | OLIVINE
Journal Article
NATURE, ISSN 0028-0836, 11/1997, Volume 390, Issue 6657, pp. 273 - 276
Several hypotheses have been proposed for the origin of the group of lavas having the isotopic signature known as 'high mu' (HIMU, where mu =... 
ELEMENT | EVOLUTION | OCEANIC ISLANDS | MULTIDISCIPLINARY SCIENCES | ISOTOPE SYSTEMATICS | CONSTRAINTS | K RO MULTIDISCIPLINARY SCIENCES | GEOCHEMISTRY | MANTLE | HELIUM
Journal Article
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, ISSN 2169-9313, 10/2012, Volume 117
Regional and local variations in mantle helium provide insight into the coupling of mantle-crust tectonics, and heat and/or mass transfer from the Earth's... 
GEOCHEMISTRY & GEOPHYSICS | GEOGRAPHICAL-DISTRIBUTION | HIGH HE-3 EMANATION | SW JAPAN | KANTO DISTRICT | FORE-ARC REGION | UPPER-MANTLE BENEATH | SEISMIC TOMOGRAPHY | KII PENINSULA | UNZEN VOLCANIC AREA | CARBON-ISOTOPE SYSTEMATICS
Journal Article
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