2,267 Works

Neogene planktonic foraminifera from the southern Kerguelen Plateau, supplement to: Berggren, William A (1992): Neogene planktonic foraminifer magnetostratigraphy of the southern Kerguelen Plateau (Sites 747, 748, 751). In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 631-647

William A Berggren
With the exception of a brief (2 m.y.) late Miocene-early Pliocene hiatus, an essentially complete Neogene record was recovered on the Kerguelen Plateau in a calcareous biofacies. The stratigraphic distribution of about 30 taxa of Neogene planktonic foraminifers recovered at Sites 747, 748,and 751 (Central and Southern Kerguelen plateaus; approximately 54°-58°S) is recorded. Faunas are characterized by low diversity and high dominance and exhibit a gradual decline in species numbers (reflecting a concomitant increase in...

Neogene Radiolarians from the Kerguelen Plateau, supplement to: Lazarus, David B (1992): Antarctic Neogene radiolarians from the Kerguelen Plateau, Legs 119 and 120. In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 785-809

David B Lazarus
Abundant, generally well-preserved radiolarians from Sites 737, 744, 745, 746, 747, 748, and 751 were used in stratigraphic analysis of Neogene, and particularly middle Miocene to Holocene, Kerguelen Plateau sediments. The composite Kerguelen section is more complete than the Weddell Sea sections recovered by Leg 113, and the radiolarians are better preserved. Leg 113 radiolarian zonations of Weddell Sea sites were applicable with only slight modification, and three new zones - Siphonosphaera vesuvius, Acrosphaeral labrata,...

Silicoflaggelates from ODP Leg 120 on the Kerguelen Plateau, supplement to: McCartney, Kevin; Harwood, David M (1992): Silicoflagellates from Leg 120 on the Kerguelen Plateau, Southeast Indian Ocean. In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 811-831

Kevin McCartney & David M Harwood
The biostratigraphic distribution and abundance of Eocene to Pleistocene silicoflagellates is documented from Ocean Drilling Program Leg 120 Holes 747A, 748A, 748B, 749B, and 751A on the Central Kerguelen Plateau. Well-preserved silicoflagellates are reported here from the middle Eocene Dictyocha grandis Zone to the Pleistocene Distephanus speculum speculum Zone. Assemblage diversity and abundance is variable, with many intervals either barren of silicoflagellates or containing only limited numbers.

Sea-floor images from ROV transects during POLARSTERN cruise ANT-XVII/3 (EASIZ III) to the Weddell Sea, Antarctica

Julian Gutt, Andreas Starmans & Núria Teixidó
Transects of a Remotely Operated Vehicle (ROV) providing sea-bed videos and photographs were carried out during POLARSTERN expedition ANT-XVII/3 focussing on the ecology of benthic assemblages on the Antarctic shelf in the South-Eastern Weddell Sea. The ROV-system sprint 103 was equiped with two video- and one still camera, lights, flash-lights, compass, and parallel lasers providing a scale in the images, a tether-management system (TMS), a winch, and the board units. All cameras used the same...

Diatom biostratigraphy of sediments from the Kerguelen Plateau, Southern Ocean, supplement to: Harwood, David M; Maruyama, Toshiaki (1992): Middle Eocene to Pleistocene diatom biostratigraphy of Southern Ocean sediments from the Kerguelen Plateau, Leg 120. In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 683-733

David M Harwood & Toshiaki Maruyama
The biostratigraphic distribution and abundance of lower Oligocene to Pleistocene diatoms is documented from Holes 747A, 747B, 748B, 749B, and 751A drilled during Ocean Drilling Program Leg 120 on the Kerguelen Plateau in the southeast Indian Ocean. The occurrence of middle and upper Eocene diatoms is also documented, but these are rare and occur in discrete intervals. The recovery of several Oligocene to Pleistocene sections with minimal coring gaps, relatively good magnetostratigraphic signatures, and mixed...

Chemical and mineral compositions of recent and ancient sediments and sedimentary rocks from the Mariana Trench, supplement to: Skornyakova, Nadezhda S; Gorbunova, Zinaida N; Kruglikova, Svetlana B; Kuz'mina, Tatyana G; Rudakova, Alevtina N; Ushakova, Maola G (1978): Sediments and sedimentary rocks from the Mariana Trench. Litologiya i Poleznyye Iskopaemyye (Lithology and Mineral Resources), 13(5), 18-32

Nadezhda S Skornyakova, Zinaida N Gorbunova, Svetlana B Kruglikova, Tatyana G Kuz'mina, Alevtina N Rudakova & Maola G Ushakova
On the bed and on the ocean slope of the southern latitudinal part of the Mariana Trench ancient sediments, as well as sedimentary and igneous rocks are exposed. In the lower part of the sampled part of the studied section Late Oligocene to Early Miocene chalk-like limestones and marls occur. Upward marly tuffites and tuffs (apparently alternating with carbonate rocks) occur. These rocks are overlain by Early Miocene tuffaceous clays and siliceous-clayey muds. In the...

Composition of organic matter from black shales drilled in the Cape Verde Basin in DSDP Hole 41-367, supplement to: Bartashevich, O V; Bogolyubova, L I (1979): Geochemistry of organic matter from black shales of the Cape Verde Basin (East Atlantic) and their oil-source potential. Litologiya i Poleznyye Iskopaemyye (Lithology and Mineral Resources), 14(2), 37-54

O V Bartashevich & L I Bogolyubova
Results of geochemical studies of organic matter in black shales from the Cape Verde Basin are reported. Based on these results, in combination with data of petrographic analysis, conclusions are made about sapropelic nature of their organic matter and low degree of its coalification. It corresponds to the proto-catagenetic substage of sedimentary rocks. Black shales of the Cape Verde Basin are classified as potential oil source strata.

Geochemistry of Walvis Ridge basalts, supplement to: Salters, Vincent J M; Sachi-Kocher, Afi (2010): An ancient metasomatic source for the Walvis Ridge basalts. Chemical Geology, 273(3-4), 151-167

Vincent J M Salters & Afi Sachi-Kocher
The proposed origins for the Enriched Mantle I component are many and various and some require an arbitrary addition of an exotic component, be it pure sediment or an enriched melt from the subcontinental lithosphere. With Pitcairn, Walvis Ridge is the 'type-locality' for the Enriched Mantle I (EMI) component. We analyzed basalts from DSDP Site 525A, Site 527 and Site 528 on the Walvis Ridge with the aim to constrain the history of its source....

Planktonic foraminifera of IODP Site 306-U1314, supplement to: Alonso-Garcia, Montserrat; Sierro, Francisco Javier; Flores, José-Abel (2011): Arctic front shifts in the subpolar North Atlantic during the Mid-Pleistocene (800–400 ka) and their implications for ocean circulation. Palaeogeography, Palaeoclimatology, Palaeoecology, 311(3-4), 268-280

Montserrat Alonso-Garcia, Francisco Javier Sierro & José-Abel Flores
Surface water conditions at the Integrated Ocean Drilling Program (IODP) Site U1314 (Southern Gardar Drift, 56° 21.8' N, 27° 53.3' W, 2820 m depth) were inferred using planktic foraminifer assemblages between Marine Isotope Stage (MIS) 19 and 11 (ca. 800-400 ka). Factor analysis of the planktic foraminifer assemblages suggests that the assemblage was controlled by three factors. The first factor (which explained 49% of the variance) is dominated by transitional and subpolar species and points...

Averaged sedimentation rates in the Northwest Pacific and Bering Sea during the first and the second oxygen isotope stages, supplement to: Gorbarenko, Sergey A; Artemova, Antonina V (2003): Chronostratigraphy of Upper Quaternary sediments of the Northwestern Pacific and the Bering Sea, change of the environment and productivity of the region. Tikhookeanskaya Geologiya (Pacific Geology), 22(5), 23-38

Sergey A Gorbarenko & Antonina V Artemova
Isotope chronostratigraphy of Upper Quaternary sediments from the Northwest Pacific and the Bering Sea was established by oxygen isotope records in planktonic and benthic foraminifera. The main regularities of temporal variations of calcium carbonate, organic carbon and opal contents, as well as of magnetic susceptibility in sediments of the study region with regard to climatic variations and productivity were established by means of isotopic-geochemical and lithophysical analyses of bottom sediments. Correlation of volcanogenic interbeds in...

K-Ar age and chemical composition of volcanites from the Sea of Okhotsk, supplement to: Emelyanova, T A; Lelikov, Evgeny P; Sedin, V T; Naryzhnyy, V L (2003): Geology and features of volcanism on the Sea of Okhotsk floor. Tikhookeanskaya Geologiya (Pacific Geology), 22(4), 3-18

T A Emelyanova, Evgeny P Lelikov, V T Sedin & V L Naryzhnyy
Volcanogenic rocks from the Sea of Okhotsk are divided into seven age complexes: Late Jurassic, Early Cretaceous, Late Cretaceous, Eocene, Late Oligocene, Late Miocene, and Pliocene-Pleistocene. All these complexes are united into two groups - Late Mesozoic and Cenozoic. Each group reflects a certain stage of development of the Sea of Okhotsk region. Late Mesozoic volcanites build the geological basement of the Sea of Okhotsk, and their petrochemical features are similar to those of the...

Sulfur speciation in bottom sediments from deep-sea basins of the Atlantic Ocean, supplement to: Morozov, Andrey A; Rozanov, Alexander G (1984): On speciation of reduced sulfur in sediments of Moroccan and Iberian Basins of the Atlantic Ocean. Litologiya i Poleznyye Iskopaemyye (Lithology and Mineral Resources), 19(4), 33-43

Andrey A Morozov & Alexander G Rozanov
Distribution of reduced sulfur forms in vertical sediment sections in deep-sea basins of the Atlantic Ocean is under study. Presence of weak sulfate reduction process resulted from low concentrations of reactive organic matter and differing by characteristic features of the initial stage of development. Interpretation of results is given on the base of consideration of dynamic redox equilibrium in the system: reduced sulfur - dissolved oxygen.

Chemical composition of Fe-Mn nodules, micronodules, and host bottom sediments of the Northeast Pacific, supplement to: Shterenberg, Lazar E; Aleksandrova, V A; Sivtsov, Alexander V; Stepanova, K A; Ilicheva, L V; Korina, E A (1985): Composition, structure, and distribution of Fe-Mn micronodules in sediments of the Northeast Pacific. Litologiya i Poleznyye Iskopaemyye (Lithology and Mineral Resources), 20(6), 58-70

Lazar E Shterenberg, V A Aleksandrova, Alexander V Sivtsov, K A Stepanova, L V Ilicheva & E A Korina
A set of methods has been used for studying composition, structure and distribution of Fe-Mn-micronodules in bottom sediments of the Northeast Pacific. It has been shown that there are two types of Fe-Mn micronodules differing in size, external shape, internal structure and composition of constituent manganese minerals.

Composition of recent carbonate bottom sediments from the Guiana shelf an off the West Africa, supplement to: El'tsina, Galina N; Emelyanov, Emelyan M (1975): Relationship between mineral, chemical and grain size composition of recent biogenic carbonate sediments (on example of the Atlantic Ocean). Litologiya i Poleznyye Iskopaemyye (Lithology and Mineral Resources), 10(5), 3-15

Galina N El'tsina & Emelyan M Emelyanov
This work was based on a study of the upper layer of recent carbonate bottom sediments of the Atlantic Ocean. Biogenic carbonate of recent sediments is represented by metastable and stable minerals. In the ocean metastable phases can exist indefinitely long, but the structure of polymorphism determines inevitability of transformation of metastable phases into stable ones. This transformation occurs in the solid phase. In the absence of a critical point between the two phases of...

Chemical composition of rocks and minerals from the ophiolite complex in the Hunter Fracture Zone, supplement to: Tararin, L A; Chubarov, K M; Filosofova, T M (2003): Petrology and origin of gabbroic rocks of the ophiolite assemblage from the Hunter Fracture Zone (Pacific Ocean). Tikhookeanskaya Geologiya (Pacific Geology), 22(3), 74-92

L A Tararin, K M Chubarov & T M Filosofova
A collection of dredge samples from the Hunter Fracture Zone includes holocrystalline massive and cumulose basic and ultrabasic rocks and volcanites of the ophiolite complex: from basalts to rhyolites. The ultrabasic rocks are largely serpentinized harzburgites and lherzolites; their relict mineralogy is typical of peridotite considered to be the refractory residue of partial melting of the mantle. Cumulate textured ultramafic rocks probably are related to the cumulate gabbro and granodiorite rather than to the residual...

Rare earth and other element contents and speciations in samples from Core AKO26-35, Pacific Ocean, Southwest Basin, supplement to: Dubinin, Alexander V; Sval'nov, Vyacheslav N (2000): Geochemistry of rare earth elements in ferromanganese micro- and macronodules from the Pacific non-productive zone. Translated from Litologiya i Polezyiye Iskopaemye, 2000, 6, 586-604, Lithology and Mineral Resources, 35(6), 520-537

Alexander V Dubinin & Vyacheslav N Sval'nov
Ferromanganese micro- and macronodules in eupelagic clays at Site AKO26-35 in the Southwest Pacific Basin were studied in order to check REE distribution during ferromanganese ore formation in non-productive zones of the Pacific Ocean. Host sediments and their labile fraction, ferromanganese micronodules (in size fractions 50-100, 100-250, 250-500, and >500 ?m) from eupelagic clays (horizons 37-10, 105-110, 165-175, and 189-190 cm), and buried ferromanganese micronodules (horizons 64-68, 158-159, and 165-166 cm) were under study. Based...

Chemical composition of ferromanganese nodules from the Black Sea, supplement to: Baturin, Gleb N; Gorshkov, Anatoly I; Magazina, Larissa O; Bogdanova, Olga Yu (2002): Structure and composition of ferromanganese-phosphate nodules from the Black Sea. Translated from Litologiya i Poleznye Iskopaemye, 2002, 4, 431-442, Lithology and Mineral Resources, 37(4), 374-385

Gleb N Baturin, Anatoly I Gorshkov, Larissa O Magazina & Olga Yu Bogdanova
Ferruginate shells and tubular worm burrows from the oxygenated zone of the Black Sea (Kalamit Bay and Danube River mouth) are studied by transmission and scanning electron microscopy combined with analyses of elemental composition. Iron and manganese oxyhydroxide nodules considered here are enriched in phosphorus. They contain variable amounts of terrigenous and biogenic material derived from host sediments. Oxyhydroxides are mainly characterized by colloform structure, whereas globular and crystalline structures are less common. The dominating...

Chemical composition of bottom sediments from the northern part of the Deryugin Trough, Sea of Okhotsk, supplement to: Astakhova, N V (2000): Geochemical features of sediments from the Deryugin Trough (Sea of Okhotsk). Tikhookeanskaya Geologiya (Pacific Geology), 19(2), 87-93

N V Astakhova
Distribution trace element contents in the upper (up to 5 m) Holocene-Upper Pleistocene sediment layer along the northern and southern sublatitudinal profiles in the northern part of the Deryugin Trough is discussed. Mathematical processing of chemical analysis data has been made. On the basis of the cluster analysis 16 elements have been combined into 5 geochemical groups. Two of them (1 - Ag-Mo group and 2 - Mn-Ba-Ni-Sr group) were considered in detail. Analysis of...

Composition of bottom sediments from the Isfjord, Western Svalbard, supplement to: Levitan, Mikhail A; Levchenko, Oleg V; Murdmaa, Ivar O; Peresypkin, Valery I; Roshchina, I A; Tolmacheva, A V (2008): History of sedimentation in Isfjord (Western Spitsbergen). Translated from Litologiya i Poleznye Iskopaemye, 2008, 6, 578-600, Lithology and Mineral Resources, 43(6), 520-541

Mikhail A Levitan, Oleg V Levchenko, Ivar O Murdmaa, Valery I Peresypkin, I A Roshchina & A V Tolmacheva
Lithology, heavy mineral associations, and chemical composition of bottom sediments studied in two gravity cores from Isfjord, Western Spitsbergen (Svalbard) accompanied by high-frequency seismic records, provide a new insight on provenance and glaciomarine sedimentation in the fjord from the last deglaciation through Holocene.

Chemical composition of ferromanganese manifestations from the Sea of Okhotsk, supplement to: Baturin, Gleb N; Dubinchuk, V T; Rashidov, V A (2012): Ferromanganese crusts from the Sea of Okhotsk. Translated from Okeanologiya, 2012, 52(1), 95-108, Oceanology, 52(1), 88-100

Gleb N Baturin, V T Dubinchuk & V A Rashidov
New data on microstructures and mineral and chemical compositions of ferromanganese crusts sampled from the western slope of the Kuril Island Arc in the Sea of Okhotsk during cruises of R/V Vulkanolog are discussed. The study of the crusts using analytical electron microscopy methods revealed that their manganese phase is represented by vernadite, Fe-vernadite, todorokite, asbolane, and asbolane-buserite, while iron phase consists of hematite, hydrohematite, ferroxyhite, and magnetite. Lithic mineral assemblage includes apatite, quartz, epidote,...

Contents of major components, U, and Th in bones and bone debris, supplement to: Baturin, Gleb N (2001): Uranium and thorium in phosphatic bone debris from the ocean bottom. Translated from Litologiya i Poleznye Iskopaemye, 2001, 2, 115-125, Lithology and Mineral Resources, 36(2), 99-108

Gleb N Baturin
Uranium and thorium contents, as well as their distribution patterns have been studied in biogenic phosphates from the Atlantic and Pacific Oceans. Differently lithified fish remains (bones, scales, teeth) and marine mammal bones (ribs, vertebras, earbones) collected from both reduced shelf sediments and oxidized pelagic ones have been analyzed. U content in the material varies from 0.7 to 700 ppm, and Th content - from <0.5 to 14 ppm. U/Th ratio varies from 0.16 to...

Compositions of paleosols from the Salarevo Formation, Sukhona River valley (Severnaya Dvina basin), supplement to: Yakimenko, EYu; Targul'yan, V O; Chumakov, N M; Arefev, M P; Inozemtsev, S A (2000): Paleosols in Upper Permian sedimentary rocks, Sukhona River (Severnaya Dvina basin). Trauslated from Litologiya i Poleznye Iskopaemye, 2000, 4, 376-390, Lithology and Mineral Resources, 35(4), 331-344

EYu Yakimenko, V O Targul'yan, N M Chumakov, M P Arefev & S A Inozemtsev
Paleosols crop out in the Sukhona River valley as several members up to 10 m thick embedded into the Salarevo Formation sediments. Principal characteristics of the paleosols include a dense network of root channels, indications of eluvial gley alteration, redistribution and formation of secondary carbonates represented by several generations, and formation of block-prismatic soil structure with specific clayey films at structural jointing faces. The paleosols are divided into a number of genetically interrelated horizons (from...

Distribution of polycyclic aromatic hydrocarbons in eolian and eolian-deluvial sediments from the North Iceland, supplement to: Geptner, A R; Alekseeva, T A; Pikovskiy, Yu I (2002): Polycyclic aromatic hydrocarbons in Holocene sediments and tephra of Iceland (composition and distribution features). Translated from Litologiya i Poleznye Iskopaemye, 2002, 2, 172–181, Lithology and Mineral Resources, 37(2), 148-156

A R Geptner, T A Alekseeva & Yu I Pikovskiy
This work considers results of a study of Holocene cover sediments in Iceland. They are largely composed of wind-transported palagonitized hyaloclastite particles and coeval horizons of acid and basic tephras. It is established that polyciclic aromatic hydrocarbons (PAH) are released from basaltic glass in natural environments only in case of intense physicochemical alteration and destruction of its structure. This process does not influence PAH composition and their quantitative proportions. No new PAH formed during several...

Consolidation and permeability characteristics at DSDP Sites 87-582, 87-583, and 87-584, supplement to: Johns, Mark W (1986): Consolidation and permeability characteristics of Japan Trench and Nankai Trough sediments from Deep Sea Drilling Project Leg 87, Sites 582, 583, and 584. In: Kagami, H; Karig, DE; Coulbourn, WT; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 87, 843-849

Mark W Johns
The results of nine consolidation and permeability tests are presented for sediment samples from the Japan Trench and Nankai Trough sites of Leg 87. Coring and degassing disturbance results in an underconsolidated state for most Site 582 samples; however, the compressional effects of the subduction zone and high sediment accumulation rates may also play a role in causing underconsolidation. Samples collected at Site 583 exhibit similar evidence of disturbance but are slightly overconsolidated, confirming the...

Paleomagneitc of early Cretaceous sediments from the western Central Atlantic, supplement to: Ogg, James G (1987): Early Cretaceous magnetic polarity time scale and the magnetostratigraphy of Deep Sea Drilling Project Sites 603 and 534, western Central Atlantic. In: van Hinte, JE; Wise, SW Jr; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 93, 849-879

James G Ogg
Drilling at Sites 534 and 603 of the Deep Sea Drilling Project recovered thick sections of Berriasian through Aptian white limestones to dark gray marls, interbedded with claystone and clastic turbidites. Progressive thermal demagnetization removed a normal-polarity overprint carried by goethite and/or pyrrhotite. The resulting characteristic magnetization is carried predominantly by magnetite. Directions and reliability of characteristic magnetization of each sample were computed by using least squares line-fits of magnetization vectors. The corrected true mean...

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