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HETEROGENEITY IN THE MANTLE - ITS CREATION, EVOLUTION AND DESTRUCTION

Helffrich G. (2006)

Small-scale seismic heterogeneity exists at different levels in the lower mantle, and is detected by methods that analyze scattered-not direct-energy from natural and artificial sources. Its vertical distribution, association ...

NEW DISCOVERIES IN DYNAMICS OF AN M8 EARTHQUAKE-PHENOMENA AND THEIR IMPLICATIONS FROM THE 2003 TOKACHI-OKI EARTHQUAKE USING A LONG TERM MONITORING CABLED OBSERVATORY

Mikada H.; Mitsuzawa K.; Watanabe T.; Morita S.; Matsumoto H.; Sugioka H.; Baba T.; Araki E.; Otsuka R.; Suyehiro K. (2006)

At the 2003 Tokachi-oki earthquake of M8, seafloor phenomena such as a generation process of tsunami, seafloor uplifts, turbidity current, etc., were observed using a cabled observatory installed on the seafloor. The ...

PALAEOENVIRONMENTS AND PALAEOCLIMATES OF THE QUATERNARY MOLLUSCAN FAUNAS FROM THE COASTAL AREA OF BAHíA VERA-CAMARONES (CHUBUT, PATAGONIA)

Aguirre M.L.; Richiano S.; Negro Sirch Y. (2006)

Quaternary molluscs are useful tools as indicators of environmental and climatic changes through time. The Patagonian coastal area exhibits a series of Quaternary marine terraces (MT) at various elevations with a well-preserved ...

MILLENNIAL-SCALE CHANGES IN TERRESTRIAL SEDIMENT INPUT AND HOLOCENE SURFACE HYDROGRAPHY IN THE NORTHERN SOUTH CHINA SEA (IMAGES MD972146)

Lin D.-C.; Liu C.-H.; Chen M.-T.; Fang T.-H.; Tsai C.-H.; Murayama M. (2006)

This study presents a high-resolution, multi-proxy analysis of sediments from IMAGES core MD972146 in the northern South China Sea (SCS). Analyses include detailed measurements of planktonic foraminifer oxygen isotopes, ...

LESSONS FROM A JOINT INTERPRETATION OF VIBROSEIS WIDE-ANGLE AND NEAR-VERTICAL REFLECTION DATA IN THE NORTHEASTERN YILGARN, WESTERN AUSTRALIA

Fomin T.; Goleby B.R. (2006)

A wide-angle reflection seismic experiment was carried out in the Eastern Goldfields granite-greenstone terrane of the Archaean Yilgarn Craton during 2001. This was the first time in Australia that wide-angle data were ...

MID-HOLOCENE ENVIRONMENTAL AND HUMAN DYNAMICS IN NORTHEASTERN CHINA RECONSTRUCTED FROM POLLEN AND ARCHAEOLOGICAL DATA

Tarasov P.; Jin G.; Wagner M. (2006)

A pollen record from the Taishizhuang site (40°21.5′N, 115°49.5′E) located in the transitional forest-steppe zone near the present-day limit of the summer monsoon is used to reconstruct vegetation and climate. Quantitative ...

A SURVEY OF ACCESSORY MINERAL ASSEMBLAGES IN PERALKALINE AND MORE ALUMINOUS A-TYPE GRANITES OF THE SOUTHEAST COASTAL AREA OF CHINA

Xie L.; Wang R.C.; Wang D.Z.; Qiu J.S. (2006)

An extensive belt of A-type granite exists along the southeast coast of China. The granites are divided into peralkaline and more aluminous subgroups which differ in mineral assemblages, mineral compositions and textures. ...

INTERPRETATION OF SELECTED STRUCTURES OF THE BISMUTHINITE - AIKINITE SERIES AS COMMENSURATELY MODULATED STRUCTURES

Petříček V.; Makovicky E. (2006)

The bismuthinite - aikinite (Bi2S3 - CuPbBiS3) series of ordered derivatives (superstructures) is based on the incremental Bi + vacancy → Pb + Cu substitution. Selected structures of this series, gladite, salzburgite, ...

MOHO DEPTH VARIATION BENEATH SOUTHWESTERN JAPAN REVEALED FROM THE VELOCITY STRUCTURE BASED ON RECEIVER FUNCTION INVERSION

Shiomi K.; Obara K.; Sato H. (2006)

The Philippine Sea plate is subducting under the Eurasian plate beneath the Chugoku-Shikoku region, southwestern Japan. We have constructed depth contours for the continental and oceanic Mohos derived from the velocity ...

DEEP-WATER RENEWAL IN THE SKAGERRAK DURING THE LAST 1200 YEARS TRIGGERED BY THE NORTH ATLANTIC OSCILLATION: EVIDENCE FROM BENTHIC FORAMINIFERAL δ18O

Brückner S.; Mackensen A. (2006)

Benthic foraminiferal tests of a sediment core from southwestern Skagerrak (northeastern North Sea, 420 m water depth) were investigated for their ratio of stable oxygen isotopes. During modern times sudden drops in ...

ALLANITE-(LA) FROM BUCA DELLA VENA MINE, APUAN ALPS, ITALY, AN EPIDOTE-GROUP MINERAL

Orlandi P.; Pasero M. (2006)

Allanite-(La) is a member of the epidote group. It was sampled at Buca della Vena mine, near Stazzema, Apuan Alps, Tuscany, Italy. It occurs as Prismatic crystal up to 2-3 mm in length along [010] within barite veins cutting ...

ALLANITE-(CE) IN GRANITIC ROCKS FROM JAPAN: GENETIC IMPLICATIONS OF PATTERNS OF REE AND MN ENRICHMENT

Hoshino M.; Kimata M.; Shimizu M.; Nishida N.; Fujiwara T. (2006)

Twenty-two samples of allanite-(Ce) taken from granitic rocks in Japan have been characterized by electron-microprobe analysis. In back-scattered-electron (BSE) images, the allanite-(Ce) is homogeneous or characterized by ...

BROMALITES FROM THE SOOM SHALE LAGERSTäTTE (UPPER ORDOVICIAN) OF SOUTH AFRICA: PALAEOECOLOGICAL AND PALAEOBIOLOGICAL IMPLICATIONS

Aldridge R.J.; Gabbott S.E.; Siveter L.J.; Theron J.N. (2006)

Bromalites from the Soom Shale are allocated to five main categories on the basis of shape, content and internal structure: those containing broken conodont elements; those containing brachiopod fragments; corrugated/spiral ...

CENTENNIAL TO MILLENNIAL CHANGES IN MAAR-LAKE DEPOSITION DURING THE LAST 45,000 YEARS IN TROPICAL SOUTHERN AFRICA (LAKE MASOKO, TANZANIA)

Garcin Y.; Williamson D.; Taieb M.; Vincens A.; Mathé P.-E.; Majule A. (2006)

The Masoko maar (southern Tanzania) provides one of the most continuous Late Quaternary lacustrine sedimentary records from Africa. A detailed chronostratigraphic framework coupled with sedimentological and magnetic ...

THE IMPORTANCE OF COOLING REGIME IN THE FORMATION OF MELT INCLUSIONS IN OLIVINE CRYSTALS IN HAPLOBASALTIC MELTS

Goldstein S.B.; Luth R.W. (2006)

Experiments using synthetic mafic liquids of composition Fo30Di30An40 and Fo22Di58An20 (wt.%) were conducted to constrain the range of cooling regimes over which melt inclusions form in olivine crystals. In one set of ...

A HIGH-RESOLUTION RECORD OF HOLOCENE RAINFALL VARIATIONS FROM THE WESTERN CHINESE LOESS PLATEAU: ANTIPHASE BEHAVIOUR OF THE AFRICAN/INDIAN AND EAST ASIAN SUMMER MONSOONS

Maher B.A.; Hu M. (2006)

Tropical monsoons are key mechanisms for transfer of heat and moisture to higher latitudes. Here we present a high-resolution, terrestrial proxy summer monsoon record for the southeast Asian monsoon, from a rapidly ...

METAL SPECIATION AND ITS ROLE IN BIOACCESSIBILITY AND BIOAVAILABILITY

Reeder R.J.; Schoonen M.A.A.; Lanzirotti A. (2006)

Metals play important but varied roles in human health. Some metals are required for normal metabolic function, with optimal amounts for maximum benefit. Others are only known to cause toxic effects. Most of our knowledge ...

CHARCOAL RECORDS OF FIRE HISTORY IN THE HOLOCENE LOESS-SOIL SEQUENCES OVER THE SOUTHERN LOESS PLATEAU OF CHINA

Huang C.Ch.; Pang J.; Chen S.; Su H.; Han J.; Cao Y.; Zhao W.; Tan Z. (2006)

Charcoal preserved in accretionary loess-soil profiles within the southern part of the Loess Plateau has recorded fire history and landscape evolution connected with climatic variations and human activities. Local wildfires ...

THE CHRONOLOGICAL RECORD OF THE WOOLLY MAMMOTH (MAMMUTHUS PRIMIGENIUS) IN JAPAN, AND ITS TEMPORARY REPLACEMENT BY PALAEOLOXODON NAUMANNI DURING MIS 3 IN HOKKAIDO (NORTHERN JAPAN)

Takahashi K.; Soeda Y.; Yamada G.; Akamatsu M.; Izuho M.; Chang C.-H. (2006)

The chronological record of the woolly mammoth (Mammuthus primigenius) in Japan is reevaluated on the basis of new and previously published radiocarbon dates obtained from 9 of the 11 known specimens. The dates range from ...

REWORKING OF JUVENILE CRUST: ELEMENT AND ISOTOPE EVIDENCE FROM NEOPROTEROZOIC GRANODIORITE IN SOUTH CHINA

Wu R.-X.; Zheng Y.-F.; Wu Y.-B.; Zhao Z.-F.; Zhang S.-B.; Liu X.; Wu F.-Y. (2006)

A combined study of geochronology and geochemistry was carried out for Neoproterozoic granodiorites at the southeastern margin of the Yangtze Block in South China. The results demonstrate that sedimentary rocks derived ...

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