A5054511541- Geological and Geophysical Studies
- Geological and Geochemical Analysis
- Geology and Paleoclimatology Research
- earthquake and tectonic studies
- Geomagnetism and Paleomagnetism Studies
- Geological Studies and Exploration
- Methane Hydrates and Related Phenomena
- Drilling and Well Engineering
- Reservoir Engineering and Simulation Methods
- High-pressure geophysics and materials
- Hydrocarbon exploration and reservoir analysis
- Geochemistry and Geologic Mapping
- Hydraulic Fracturing and Reservoir Analysis
- Geochemistry and Elemental Analysis
- Geological formations and processes
- Pacific and Southeast Asian Studies
- Underwater Acoustics Research
- Paleontology and Stratigraphy of Fossils
- Pluripotent Stem Cells Research
- Offshore Engineering and Technologies
- Advanced Computational Techniques and Applications
- Melanoma and MAPK Pathways
- Black Holes and Theoretical Physics
- Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
- Synthesis and pharmacology of benzodiazepine derivatives
Chiba University
2015-2024
Kanazawa Medical University
2015
Osaka University
2009-2010
The University of Tokyo
1987-2008
University of Missouri
1998
Scripps Institution of Oceanography
1995
Iwate Medical University
1995
Ocean Institute
1987
Hautklinik Heidelberg
1931
We have identified Late Jurassic to Early Cretaceous magnetic anomaly lineations (M0 M35 of the Japanese and Hawaiian lineation sets) fracture zones in northwestern Pacific more comprehensively than previous investigators. fixed 3500 positions anomalies from data collected along cruise tracks as well 151 bathymetric seismic profiles. The resultant isochron map revealed evolution triple junction Pacific, Izanagi, Farallon plates intimate relationship between origin Shatsky Rise. stagnated on...
Late Jurassic to Early Cretaceous (Mesozoic) magnetic anomaly lineations (the Phoenix, Magellan, Mid-Pacific Mountains, Hawaiian and Japanese lineation sets) with fracture zones in the west-central Pacific Ocean were identified more comprehensively than any previous studies. We fixed 2100 positions of anomalies based on data 283 cruise tracks. Two remarkable zones, Phoenix Central Fracture Zones, mapped newly named. Our from M10N M0 around which belong set, illustrated that sea-floor south...
Oceanic plateaus are major ocean features, yet their origins and development poorly understood. Many huge piles of basalt, it is widely accepted that mantle plumes source, perhaps from eruptions the voluminous head an emerging plume. Shatsky Rise a basaltic plateau formed during period geomagnetic reversals, unlike many mid‐Cretaceous plateaus, so magnetic data can help us understand its tectonic history. In this study, we analyzed anomaly 131 cruises over around constructed lineation chart...
Oceanic plateaus are large igneous edifices thought to have been created by nascent mantle plumes, but owing sparse data, their origins remain uncertain. Understanding plateau evolution is important because they significant ocean features and may provide clues about plume dynamics. We constructed a bathymetry map of Shatsky Rise, Pacific plateau, combining multibeam wide‐beam echosounder data from 87 cruises U.S. Navy contours. The rise consists three large, isolated volcanic (massifs),...
A new Mesozoic isochron chart of the northwestern Pacific Ocean has been completed by utilizing all currently available data from 357 cruises. Our provides first whole view magnetic anomaly lineations in and yields essential information for understanding problems magnetostratigraphic time scale evolutional history plate. The must be recalibrated using not only Hawaiian lineation set but also other sets. lack M0 sets than indicates that a reorganization ridges except Pacific‐Farallon ridge...
Elongated fault escarpments on the outer slopes of western Kuril and Japan trenches have been investigated through detailed swath bathymetric mapping. Numerous horsts grabens formed by these were identified. Distinct N70°E linear alignment escarpments, parallel to magnetic anomaly lineations, was revealed slope Trench. In Trench north 39°00′N, most are trench axis oblique lineations. A zig-zag pattern faulting exists south 39°00′N. Each topographic profile decomposed computer analysis into...
ABSTRACT On the western part of Pacific Plate most seamounts formed during Cretaceous period in so‐called West Seamount Province (WPSP). northwestern same plate, Joban and Japanese Trail (JJST) are also composed Early seamounts. However, two new groups knolls were recently discovered multibeam surveys on along Japan Trench. One group consists circular that flat‐topped shape correspond to eruptive ages approximately 75 Ma. The other irregularly shaped knolls, called petit‐spot volcanoes,...
Research Article| July 01, 2007 Depleted mantle wedge and sediment fingerprint in unusual basalts from the Manihiki Plateau, central Pacific Ocean Stephanie Ingle; Ingle 1Department of Earth Planetary Sciences, Tokyo Institute Technology, 152-8551, Japan Search for other works by this author on: GSW Google Scholar John J. Mahoney; Mahoney 2School Science University Hawaii, Honolulu, Hawaii 96822, USA Hiroshi Sato; Sato 3School Business Administration, Senshu University, Kanagawa 214-8580,...
Abstract The formation of the Ontong Java Nui super oceanic plateau (OJN), which is based on model that submarine Plateau (OJP), Manihiki (MP), and Hikurangi (HP) were once its contiguous fragments, could have been largest globally consequential volcanic event in Earth’s history. This OJN hypothesis has debated given paucity evidence, for example, differences crustal thickness, compositional gap between MP OJP basalts apparent older age both plateaus relative to HP remain unresolved. Here we...
In the Central Pacific Basin, an abandoned, NE trending spreading ridge is evident on satellite gravity map and confirmed in bathymetric magnetic data. Our identification of anomaly lineations flanking abandoned suggests that between chrons M21 (147 Ma) M14 (135 it was plate boundary a microplate, which we here name Trinidad microplate. The configuration Pacific‐Farallon‐Phoenix triple junction until chron M22 (149 fault‐fault‐ridge (FFR). After M22, changed its configuration. reorganization...
The stress field of oceanic lithosphere controls the distribution submarine petit-spot volcanoes. However, eruption sites these volcanoes are considered to be limited concavely flexed regions off outer rise. Here, we present new data for a recently identified lava on convexly section adjacent subduction zone offshore northeast Japan in an area containing more than 80 This is marked by strongly alkaline lavas that were erupted region. As region where petit-spots previously reported, base...
Abstract Areas of old and cold oceanic plate lack conventional volcanism have been assumed to be devoid submarine hydrothermal activity. However, petit-spot volcanoes are common in areas flexure such plates. Here, we report ferromanganese oxides dredged from the vicinity a volcano at 5.7 km water depth an area east Japan Trench. The bulk chemical, lead isotopic mineralogical compositions samples indicate their formation by low-temperature activity, which can interpreted as being caused...
The promoters of α1(I) procollagen genes vertebrates contain two contiguous stretches polypyrimidine/polypurine sequences, referred to as C1 (−140 −170) and C2 (−171 −200). Antiparallel triplex-forming upstream oligonucleotides form efficient triplexes with C1. tract human differs from rodent by 7 nt which are mainly A→G transitions. Human oligodeoxyribonucleotide (TFO) formed stable efficiently a Kd ∼10–20 nM compared ∼100 for TFO. Mutational analysis indicated that 3 or 4 (−153 −155)...