... OF MINERALOGICAL AND PETROLOGICAL SCIENCES Original Articles Petrogenesis of Oligocene to Miocene volcanic rocks from the Toyama basin of the SW Japan arc: Temporal change of arc volcanism during the back-arc spreading in the Japan Sea. Raiki YAMADA, Toshiro TAKAHASHI, Yasuhiro OGITA Mineralogical study...

... for their paper Petrogenesis of Oligocene to Miocene volcanic rocks from the Toyama basin of the SW Japan arc: Temporal change of arc volcanism during the back arc spreading in the Japan Sea , which was published in the 2023 JMPS (118:026, httpsdoi.org/10.2465/jmps.221219a). JOURNAL OF MINERALOGICAL...

...WILLIAM J. LUDWIG; SADANORI MURAUCHI; ROBERT E. HOUTZ Abstract Seismic reflection (profiler) traverses of the Japan Basin, Yamato Basin, and intervening Yamato Ridge reveal horizontally stratified sediments over weakly stratified sediments. The basement surface is rough in some places and smooth...

... of the formation consists of alternating beds of conglomerate and sandstone in the center of the sedimentary basin. A marine silty sandstone (the Midorigaoka Member) overlies it with a transgressive surface. The middle to upper part of the Toyama Formation consists mainly of in ascending order, a marine dark gray...

... diagram. Letter symbols: TB = Toyama Bay; STT = Southern Toyama Trough; CTT = Central Toyama Trough; NTT = Northern Toyama Trough; YB = Yamato Basin; YR = Yamato Rise; and JB = Japan Basin. ...

... =0.5–1 Hz), the site amplification factor varies over a wide range from −4 to 24 dB, with larger site amplification factors (>8 dB) in such major basins as Kushiro, Rumoi, Sapporo, Aomori, Sendai, Niigata, Tokyo, Toyama, Nagoya, Osaka, Oita, and Kagoshima. On the other hand, the site amplification...

...K. TAZAKI; M. SATO; S. VAN DER GAAST; T. MORIKAWA Abstract In 1985, Dashidaira Dam, equipped with a flushing gate, was built on the Kurobe River in Toyama, Japan. Since the dam sediments were first flushed out in December 1991, benthic fish counts have decreased year by year due to repeated...

... of Fr d ). We discuss fine-grained sediment waves formed and maintained by dilute turbidity currents in two very different submarine settings, i.e., on the inner levees of the Toyama Channel (in the Yamato Basin in the central Japan Sea ( Fig. 1A ) and on the inner margin of the Oronoco...

...Chiaki Toyama; Hirochika Sumino; Nobuaki Okabe; Akira Ishikawa; Junji Yamamoto; Ichiro Kaneoka; Yasuyuki Muramatsu Abstract To investigate halogen heterogeneity in the subcontinental lithospheric mantle (SCLM), we measured the concentrations of Cl, Br, and I in kimberlites and their mantle...

... of water into the Toyama basin and transported 1–2 Mt/yr of coarse sediment (sand and gravels) before the river was dammed between 1956 and 1963 ( Uda and Omata, 1989 ). The HMR is one of the snowiest places on Earth, with a total annual precipitation of 4000 mm/yr ( Uda and Omata, 1989 ) and annual...

...), Fossa Magna Museum in Itoigawa City (FMM), National Museum of Nature and Science (NMNS PM), Toyama Science Museum (TOYA-Fo), Kyushu University (GK.G.), and the Firefly Museum of Toyota Town in Shimonoseki City (FMT). 18 04 2021 Copyright © The Author(s), 2021. Published...

... and other stratigraphic-trap fields. One field party continued the survey of the outcropping formations on Noto Peninsula in order to evaluate the productive possibilities of Toyama basin. Exploration of the Bozo Peninsula southwest of Tokyo continued, as also work in the Cretaceous basin of western...

... are enriched in incompatible elements and depleted in Sr. Data for lamprophyres, kimberlites, and Feixian basalts were obtained from Wang et al. (2020) , Toyama et al. (2012) , and Gao et al. (2008) , respectively. Primitive mantle data from McDonough and Sun (1995) . Compositional range of MORB and OIB...

... of Ozawa & Kamiya (2001 ), the Early Pleistocene Omma Formation ( Fig. 1 ), Oyabe City, Toyama Prefecture, central Japan (Lat. 36°41.1ʹ N, Long. 136°52.1ʹ E). Family Cytheruridae G. W. Müller, 1894 Subfamily Cytherurinae G. W. Müller, 1894 Genus Semicytherura Wagner, 1957 Sexual...

... of turbidity currents on Navy Submarine Fan, California Continental Borderland : Sedimentology , v. 31 , p. 169 – 185 , doi:10.1111/j.1365-3091.1984.tb01957.x . Carmona N.B. Ponce J.J. , 2011 , Ichnology and sedimentology of Miocene hyperpycnites of the Austral foreland basin (Tierra del...

...Yuri Onishi; Kiwako Takii-Kawakami; Hiroko Abe; Yoshiro Ishihara Abstract The Aoshima Formation, the uppermost part of a Neogene forearc basin fill, is well exposed along the Nichinan Coast of Kyushu Island, SW Japan. It consists of alternating hemipelagic mudstones and sandy sediment-gravity-flow...

... some Holocene coastlines and throughout a large segment of geologic history. Several large fans and fan deltas coalesce along the margins of Toyama Bay along the west-central coast of Honshu Island, Japan. The geomorphology and sedimentology of these fans were described by Fujii (1965 , 1966...