The Cretaceous Okhotsk–Chukotka Volcanic Belt (NE Russia): Geology, geochronology, magma output rates, and implications on the genesis of silicic LIPs

Тихомиров, П. Л.; Kalinina, E.A.; Moriguti, Takuya; Makishima, Akio; Kobayashi, Katsura; Cherepanova, I.Yu.; Nakamura, Eizo

doi:10.1016/j.jvolgeores.2011.12.011

Cited by 76 publications

(54 citation statements)

References 44 publications

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“…The second and third sources show correlations with the sea ice transportation and expansion. The dropstones with petrology forms which are mainly dacite, andesite and rhyolite in core OS03-1 are similar with the lithology of the outcrop in the northern shelf of Okhotsk Sea, which mainly contains dacite and rhyolite (Tikhomirov et al, 2012). According to the lithology, shape and size of the drop-stones, we can easily remove the fourth.…”

Section: Provenance Of Coarse Detrital Materialsmentioning

confidence: 77%

“…Nicholson et al (2014) reported that the common hornblende is a characteristic mineral in the sediments of northern coastline of the Okhotsk Sea and the eastern sea area of the Sakhalin, where the content of common hornblende is extremely high. In fact, the content of common hornblende is low in the sediments near the Kamchatka Peninsula and the Kuril Islands (Derkachev and Nikolaeva, 2007;Tikhomirov et al, 2012), while hypersthene is relatively higher in these areas (Tikhomirov et al, 2012). Hypersthene, magnetite and volcanic glass are higher in volcanic ash layers but lower in terrigenous sediment units and are also widely distributed in the core.…”

Section: Provenance Of Coarse Detrital Materialsmentioning

confidence: 97%

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Sediment provenance variations in the southern Okhotsk Sea over the last 180 ka: Evidence from light and heavy minerals

Wang

Shi

Zou

et al. 2017

Palaeogeography, Palaeoclimatology, Palaeoecology

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In this study, we investigate light and heavy minerals in sediment core OS03-1 located at the Academy of Sciences Rise of the southern Okhotsk Sea to determine their distributions and sources over the last 180 ka (thousand years). The sediment mainly consists of terrigenous and volcanic detritus. Ubiquitous drop-stones and volcanic detritus throughout the core and high detrital input suggest that sea ice, driven by wind and Kamchatka Current, was the main transport agent of detrital materials to the southern Okhotsk Sea. The ternary diagram of heavy minerals (hornblende-hypersthene-epidote) shows an expansion of detritus provenance from the eastern in cold periods to the northeastern in warm intervals of the Okhotsk Sea. It mainly relates to the shift of Aleutian Low. Combined with previous records, accumulation rates of quartz indicated a maximum extent but not perennial sea ice coverage during the glacial periods.

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Section: Provenance Of Coarse Detrital Materialsmentioning

confidence: 77%

Section: Provenance Of Coarse Detrital Materialsmentioning

confidence: 97%

Sediment provenance variations in the southern Okhotsk Sea over the last 180 ka: Evidence from light and heavy minerals

Wang

Shi

Zou

et al. 2017

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…This suture zone is buried under the Cretaceous Okhotsk-Chukotka volcanic belt (Tikhomirov et al, 2012). In western Chukotka, the suture is marked by Mesozoic terrigenous turbidite and fragments of ophiolite sequences (Sokolov et al, 2002), but in eastern Chukotka the suture corresponds to the Velmai terrane (Parfenov et al, 1993;Nokleberg et al, 1998;Sokolov et al, 2009).…”

Section: Geological Settingmentioning

confidence: 99%

Petrogenises of Triassic gabbroic and basaltic rocks from Chukotka, NE Russia: Eastern end of the ‘arc–type’ Siberian LIP?

Desta

Ishiwatari

Machi

et al. 2015

Journal of Mineralogical and Petrological Sciences

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The Triassic gabbroic intrusions and associated basaltic lavas from Chukotka are mainly tholeiitic with both ocean island basalt (OIB) and island arc basalt (IAB)-type geochemical signatures. Mg-number [Mg# = 100 × Mg/(Mg + Fe 2+ )] is around 40 for OIB-type gabbros, ranges from 48 to 66 for IAB-type hornblende-rich gabbros, and 43 to 65 for IAB-type basaltic rocks (ankaramites, lamprophyres, pyroxene-phyric basalts and hornblende-phyric basaltic andesite). TiO 2 contents of the IAB-type gabbros and basaltic rocks are low (<2 wt%), but are high in OIB-type gabbros (4.3-5.3 wt%). OIB-type gabbros are typically enriched in FeO * (16-18 wt%) as compared to IAB-type gabbros (10-14 wt%) and IAB-type lavas (ankaramites,~10 wt%; lamprophyres,~14; pyroxene-phyric basalt, 11 wt% and basaltic andesite, 9-10 wt. %). In the primitive mantle normalized trace element patterns, IAB-type basalts and gabbros are characterized by depletion in HFSE (Nb, Ta, Zr and Hf ) and enrichment in LILE. OIB-type gabbros can be distinguished from the rests by the absence of HFSE depletion, with strong negative Sr anomaly. The positive Ti anomaly in the OIB-type gabbros can be attributed to high content of ilmenite in these rocks. Trace element characteristics of IAB-type gabbroic rocks and basalts are compatible with their magmas derived from subduction influenced melts, whereas OIB-type gabbros show within-plate geochemical characteristics. IAB-type gabbros and basaltic rocks display similar geochemical features to the low-Ti Nadezhdinsky suit (Noril'sk region) and Bel'kov dolerite (New Siberian Islands) of the Siberian large igneous province (LIP) in view of HFSE depletion and high H 2 O content of the magma to crystallize abundant hornblende not only in gabbros but also as phenocrysts in basalts. The Triassic gabbroic and basaltic rocks of both OIB and IAB types may as a whole represents the eastern end of the Siberian LIP.

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“…It was estimated from radioisotope records to be within the Cenomanian-Turonian (93 ± 2 Ma; Kotlyar et al, 2001;Kotlyar and Rusakova, 2004;Zhulanova et al, 2007) or Conia cian-Santonian (86.8 ± 2.7 Ma; Tikhomirov et al, 2006). New ages for the samples taken directly at the site of the Ust' Emuneret flora in the over and under lying deposits were recently published (Tikhomirov et al, 2012). The available datings, 84.3 ± 2.2 Ma for Sample T05 86 1 and 82.9 ± 2.3 Ma for Sample T05 88, suggest that the Ust' Emuneret flora is most likely Santonian-early Campanian.…”

Section: Methodsmentioning

confidence: 99%

Growing conditions of the Ust’-Emuneret flora and the Santonian-Campanian climate of Chukotka

Moiseeva

2015

Stratigr. Geol. Correl.

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New data on climatic conditions of the Ust' Emuneret flora growth in the Enmyvaam River basin, Okhotsk-Chukotka volcanic belt, are reported. A great diversity of woody dicot leaves in the studied flora permits for the first time for this region the reconstruction of quantitative paleoclimatic parameters using the CLAMP analysis. On the basis of the available results, the Santonian-Campanian climate of the northern Okhotsk-Chukotka volcanic belt and the adjacent Anadyr-Koryak region is analyzed.

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The Cretaceous Okhotsk–Chukotka Volcanic Belt (NE Russia): Geology, geochronology, magma output rates, and implications on the genesis of silicic LIPs

Cited by 76 publications

References 44 publications

Sediment provenance variations in the southern Okhotsk Sea over the last 180 ka: Evidence from light and heavy minerals

Sediment provenance variations in the southern Okhotsk Sea over the last 180 ka: Evidence from light and heavy minerals

Petrogenises of Triassic gabbroic and basaltic rocks from Chukotka, NE Russia: Eastern end of the ‘arc–type’ Siberian LIP?

Growing conditions of the Ust’-Emuneret flora and the Santonian-Campanian climate of Chukotka

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