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Article
Open AccessIce sheet and precession controlled subarctic Pacific productivity and upwelling over the last 550,000 years
The polar oceans play a vital role in regulating atmospheric CO2 concentrations (pCO2) during the Pleistocene glacial cycles. However, despite being the largest modern reservoir of respired carbon, the impact of ...
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Article
Distribution and composition of authigenic minerals in surface sediments of the western Gulf of Thailand
Generation, morphology, and distribution of authigenic minerals directly reflect sedimentary environment and material sources. Surface sediments were collected from the western Gulf of Thailand during 2011–201...
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Article
Benthic foraminiferal δ 13C minimum events in the southeastern Okhotsk Sea over the last 180 ka
A total of six δ 13C minimum events, i.e., VI, V, IV, III, II, and I, were observed via a stable carbon and oxygen isotope analysis of infaunal benthic foraminifera Uvigerina spp. in gravity core ...
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Article
Open AccessTurbidite and bottom-current evolution revealed by anisotropy of magnetic susceptibility of redox sediments in the Ulleung Basin, Sea of Japan
Anisotropy of magnetic susceptibility (AMS) from above and below 7.31 m in a core from the southern Ulleung Basin shows clear differences on an equal area projection of the lower hemisphere. Rather concentrate...
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Article
Depositional environment in the southern Ulleung Basin, East Sea (Sea of Japan), during the last 48 000 years
The present study is based on the sedimentological data from a piston core KCES1 off the southern Ulleung Basin margin, the East Sea (Sea of Japan). The data include sediment color (L*), X-ray radiographs, grain ...
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Article
Major element, trace element, and Sr, Nd and Pb isotope studies of Cenozoic basalts from the South China Sea
The whole rock K-Ar ages of basalts from the South China Sea basin vary from 3.8 to 7.9 Ma, which suggest that intra-plate volcanism after the cessation of spreading of the South China Sea (SCS) is comparable ...
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Article
Growth ages of ferromanganese crusts from the western and central pacific: Comparison between nannofossil analysis and 10Be dating
Based on results of nannofossil analysis and 10Be dating in ferromanganese crusts M1-1 and A1-1 (no nannofossils were found in it), from the western and central Pacific respectively, it is found that the crust gr...
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Article
Sediment provenance and province of the southern Yellow Sea: Evidence from light mineral
The distribution for percent content of light mineral is divided in detail to emphasize distributional trends of higher and lower contents by using 222 samples of light mineral in the southern Yellow Sea. 5 mi...