cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.706210
title: (Table 6) Sb isotope composition of bottom sediments from ODP Hole 185-1149A

description: Multiple-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) has been used for the precise measurement of Sb isotopic composition in geological samples, as well as Sb(III) and Sb(V) species in aqueous samples. Sb is chemically purified prior to analysis by using cation-exchange resin and cotton impregnated with thioglycollic acid (TCF). Purification through cation-exchange resin is required for the removal of matrix interfering elements such as transitional metals, whereas TCF is required for the separation of other hydride-forming elements such as Ge and As. The analyte is introduced in the plasma torch using a continuous flow hydride generation system. Instrumental mass fractionation is corrected with a "standard-sample bracketing" approach. Using this technique, the minimum Sb required per analysis is as low as 10 ng for an estimated external precision calculated for the 123Sb/121Sb isotope ratio of 0.4 var epsilon units (2 sigma).Sb isotope fractionation experiments reported here indicate strong fractionation (9 var epsilon units) during Sb(V) reduction to Sb(III). Seawater, mantle-derived rocks, various environmental samples, deep-sea sediments and hydrothermal sulfides from deep-sea vents have been analyzed for their Sb isotope composition. We define a continental and oceanic crust reservoir at 2±1 var epsilon units. Seawater var epsilon123Sb values do not vary significantly with depth and yield a restricted range of 3.7±0.4 var epsilon units. Sb deposited in hydrothermal environments has a significant range of Sb isotopic composition (up to 18 var epsilon units). These variations may reflect not only contributions from different Sb-sources (such as seawater and volcanic rocks), but also kinetic fractionation occurring at low temperature in aqueous media through the reduction of seawater-derived Sb(V) in more reducing environment. Our results suggest that Sb isotopes can be extremely useful tracers of natural processes and may be useful as paleoredox tracers in oceanic systems.
description: e-123Sb = 10000 x {[(123Sb/121Sb)_sample / (123Sb/121Sb)_standard] - 1}
description: Supplement to: Rouxel, Olivier J; Ludden, John N; Fouquet, Yves (2003): Antimony isotope variations in natural systems and implications for their use as geochemical tracers. Chemical Geology, 200(1-2), 25-40
DOI: 10.1594/pangaea.752699
title: Meteorological observations during VERGENOEGEN cruise from El Mina to Paramaribo started at 1787-03-26
DOI: 10.1594/pangaea.786444
title: (Appendix A) Sea surface temperature reconstruction for ODP Site 184-1143

description: Orbital resolution thermal histories over the last 4 Ma at ODP Site 1143 in the tropical western Pacific are reconstructed using alkenone paleothermometry. The temperature profile is characterized by a steady state of ~29 °C with fluctuations &lt; 1 °C before 2.7 Ma and by a strong oscillating state from 2.7 Ma, largely due to cooling by up to 4 °C from ~29 °C in interglacial to 26 °C in glacial intervals. This implies a relative warm and stable surface hydrography during the early and mid Pliocene in this region influenced by the warm pool before temperature decreases in responding to global cooling and the formation of the distinct glacial stages since the late Pliocene. Therefore, the smaller SST gradient between tropical eastern and western Pacific and between southern and northern South China Sea before the late Pliocene indicates a super sized Pliocene Pacific warm pool, while the larger SST gradient since then marks progressively intensification of the zonal Walker circulation and meridional Hadley circulation, representing the monsoon circulations in the region. The intensification of the Walker and Hadley circulations over the tropical Pacific may also have helped on the onset of glaciations and subsequent deglaciations during the late Pliocene and Pleistocene.
description: Sediment depth is given in mcd.
description: Supplement to: Li, Li; Li, Qianyu; Tian, Jun; Wang, Pinxian; Wang, Hui; Liu, Zhonghui (2011): A 4-Ma record of thermal evolution in the tropical western Pacific and its implications on climate change. Earth and Planetary Science Letters, 309(1-2), 10-20
DOI: 10.1594/pangaea.808330
title: (Table 1) Minerals of bulk samples at DSDP Leg 80 Holes

description: &lt;1 = trace, ?1 = possible trace, &gt;1 = trace+, ?0 = possible presence, #1 = present.
DOI: 10.1594/pangaea.752464
title: Meteorological observations during TERPSICHORE cruise from Madras to Acheen started at 1802-06-10
DOI: 10.1594/pangaea.748083
title: Hydrography on standard level calculated from water bottle samples of RV Ekliptika in 1989
DOI: 10.1594/pangaea.748751
title: Meteorological observations during Earl Talbot cruise from Java Head to Long Reach started at 1791-05-05
DOI: 10.1594/pangaea.712734
title: (Table A4) Composition of coarse fraction of sediment core POS158/1_0015/1

description: Components of coarse fraction (125-500 µm) in grain percentages
DOI: 10.1594/pangaea.858037
title: (Table, Appendix C) Metal content of nodules at Sea Scope stations based upon XRF analyses at the Ore Microscopy Laboratory, Washington State Unicersity, USA

description: New information on possible resource value of sea floor manganese nodule deposits in the eastern north Pacific has been obtained by a study of records and collections of the 1972 Sea Scope Expedition. Nodule abundance (percent of sea floor covered) varies greatly, according to photographs from eight stations and data from other sources. All estimates considered reliable are plotted on a map of the region. Similar maps show the average content of Ni, Cu, Mn and Co at 89 stations from which three or more nodules were analyzed. Variations in nodule metal content at each station are shown graphically in an appendix, where data on nodule sizes are also given. Results of new analyses of 420 nodules from 93 stations for mn, fe, ni, cu, CO, and zn are listed in another appendix. Relatively high Ni + Cu content is restricted chiefly to four groups of stations in the equatorial region, where group averages are 1.86, 1.99, 2.47, and 2.55 weight-percent. Prepared for United States Department of the Interior, Bureau of Mines. Grant no. GO284008-02-MAS. - NTIS PB82-142571.
description: Several nodules were analysed for each station. Nodules were reduced to powder and dried for 4 hours at 110°C.From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.
description: Supplement to: Fewkes, Ronald H; McFarland, William Douglas; Sorem, Ronald K (1981): Manganese nodule resource data, Sea Scope Expedition: final report. U.S. Bureau of Mines Open File Report, Dept. of Geology, Washington State University, Pullman, Washington, U.S.A., 144, 230 pp
DOI: 10.1594/pangaea.776365
title: (Table A7) Diatom abundance in sediment core MR99-04-2PC

description: Total count of 200 specimens per sample.
DOI: 10.1594/pangaea.794484
title: (Table 9) Carbon composition, bulk densities, accumulation rates and ages of ODP Site 167-1019 sediments

description: DEPTH, sediment is given in mbsf.
DOI: 10.1594/pangaea.751025
title: Meteorological observations during PALLAS cruise from St. Thomas to Jamaica started at 1776-05-06
DOI: 10.1594/pangaea.499444
title: Physical oceanography from BT during cruise U90XX08208B_1973
DOI: 10.1594/pangaea.499478
title: Physical oceanography from BT during cruise U90XX08245B_1977
DOI: 10.1594/pangaea.499642
title: Physical oceanography from BT during cruise U99XX00102B_1953
DOI: 10.1594/pangaea.717889
title: (Table 2) Bottom-hole temperature measurements at DSDP Sites 68-501, 69-504, and 69-505

description: Drilling durin Deep Sea Drilling Project Legs 68, 69, and 70 on the southern limb of the Costa Rica Rift was used to study geothermal processes in the ocean crust. Two areas were drilled. One was a geothermally hot site on 6.2-m.y.-old crust, where topography is smooth, heat flow is close to that predicted by conductive cooling of the lithosphere (200 mWm**-2), and hydrothermal circulation may be sealed within the crust. The other was on 3.9-m.y.-old crust, where rough topography is associated with low heat flow (15 to 50 mWm**-2) and possible open convection of sea water. At both sites, about 250 m of siliceous-calcareous sediments overlies igneous basement. In the hot area, it blankets the topography, whereas in the cold area, basement outcrops still occur. Operations included numerous down-hole experiments in both areas and hydraulic piston coring of a 230-m sediment section in the hot area. Diagenesis of the sediments appears closely related to temperature. At the hot site, chert was found near basement, and the chemistry of pore fluids, sampled from both sediments and basement, is strongly influenced by reactions within the basement. Strong lateral gradients in the composition of pore fluids occur in the sediments. At the cold site, no chert was found, and bacterial processes within the sediment dominated the chemistry of the pore fluids. Basaltic basement in both areas consists mainly of pillow lavas and thin flows, with occasional more massive units. The basalt is relatively magnesian. The degree of alteration is very small in the cold area, but much more extensive in the hot area. Ease of drilling also shows a strong contrast. Basement penetration reached 562 m in the hot area and was halted because of lack of time; at the cold site, 43 m of basement was cored only with difficulty. The most intensive in-hole experiments were conducted in the hot area. Successful runs with the borehole televiewer allowed basement lithology to be determined and showed the presence of more and less fractured zones. Pulse tests using a single borehole packer gave values of basement permeability of about 2 to 40 millidarcies. Numerous temperature logs established a broadly conductive in situ temperature gradient, with temperatures reaching 120°C at 562 m into the basement. However, anomalously low temperatures in the upper part of the hole, which persisted after drilling disturbance had decayed away, showed that cold ocean water was flowing down the hole and into the basement at about 90 m below the base of the sediments, at rates of about 80 to 100 m/hr. The packer records indicate a pressure at this depth of 10 bars below hydrostatic.
DOI: 10.1594/pangaea.740673
title: Age determination of sediment core QUARTZ, Quartzevoe, Russia

description: This dataset was archived on 2010-05-11 from the EPD database (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.787621
title: (Table 1) Magnetic susceptibility from IODP Hole 308-U1322B

description: The continental slope of the northern Gulf of Mexico seaward of the Mississippi Delta is characterized by very rapid Quaternary sedimentation. Thick sequences of underconsolidated muds and mudstones are present, which are severely overpressured. In the Ursa Basin, Site U1322 of the Integrated Ocean Drilling Program (IODP) provided an excellent coring record of interleaved fine-grained turbidites and hemipelagic sediments, in part severely affected by submarine slumping and sliding after deposition. Cores were continuously sampled and analyzed for anisotropy of magnetic susceptibility (AMS), to elucidate the effects of different transport mechanisms and degree of settling and consolidation on magnetic fabric properties. Generally AMS ellipticity increases with depth irrespective of transport mode, due to loss of porosity. Samples from slumped mass transport deposits (MTD), however, have higher AMS if compared to immediately overlying nonslumped material. MTD samples dominantly show triaxial magnetic fabrics whereas those found in nonslumped sediments are much more oblate. Long axes of the fabric ellipsoid reflect the direction of eastward to southward suspension transport in samples not overprinted by sliding or slumping. Short ellipsoid axes in non-slumped material are vertical, and thus parallel to the axis of maximum uniaxial shortening. In the MTD samples, many short ellipsoid axes are inclined, reflecting an overprint of the uniaxial shortening by bedparallel shearing induced by the slumping. Shear and MTD transport direction deduced from the fabrics is top to- SE, downslope along the morphological axis of Ursa Basin. Generally we show that magnetic fabrics of muds and mudstones are sensitive recorders of sedimentary and tectonic processes, and can be used to reconstruct essential
description: Supplement to: Meissl, Sandra; Behrmann, Jan-Hinrich; Franke, Christine (2011): Magnetic fabrics in Quaternary sediments, Ursa Basin, northern Gulf of Mexico record transport processes, compaction and submarine slumping. Marine Geology, 286(1-4), 51-64
DOI: 10.1594/pangaea.499494
title: Physical oceanography from BT during cruise U90XX08262B_1978
DOI: 10.1594/pangaea.822033
title: (Table 5) Bulk composition and clay mineralogy at DSDP Site 56-435

description: Sediment depth is given in mbsf. &lt;1 = trace, ?1 = questionalble presence. Empty cells mean no data.
DOI: 10.1594/pangaea.822044
title: (Table 10) Bulk composition and clay mineralogy at DSDP Site 57-441

description: Sediment depth is given in mbsf. &lt;1 = trace, ?1 = questionalble presence, #1 = present. Empty cells mean no data.
DOI: 10.1594/pangaea.498902
title: Physical oceanography from BT during cruise U90X008037B_1977
DOI: 10.1594/pangaea.739481
title: Pollen profile LONSP, Long Lough, United Kingdom

description: Method: Defloculation in 10% KOH, 10u sieved, HF and HCl treatment, Acetolysis, 10u sieved dehydrated in 20%, 50%, 70%, 90%, 100% Alcohol, mounted in silicone fluid.The EPD (http://www.europeanpollendatabase.net) accepted species name is given in the parameter comment. This dataset was archived on 2010-05-11 from the EPD database.
DOI: 10.1594/pangaea.499499
title: Physical oceanography from BT during cruise U90XX08271B_1979
DOI: 10.1594/pangaea.748016
title: Meteorological observations during CURACAO cruise from Paramaribo to Paramaribo started at 1840-11-15
DOI: 10.1594/pangaea.499185
title: Physical oceanography from BT during cruise U90X008522B_1985
DOI: 10.1594/pangaea.752153
title: Meteorological observations during SOERABAYA cruise from Soerabaya to Tjilatjap started at 1839-08-26
DOI: 10.1594/pangaea.751607
title: Meteorological observations during PROTEUS cruise from Rotterdam to Batavia started at 1850-01-08
DOI: 10.1594/pangaea.716612
title: Expanded measurements from Neumayer Station (2008-03)

description: 99999: No clouds detected
DOI: 10.1594/pangaea.752582
title: Meteorological observations during UNKNOWN-08 cruise from Holland to Batavia started at 1838-11-14
DOI: 10.1594/pangaea.498340
title: Physical oceanography from BT during cruise U909900019B_1906
DOI: 10.1594/pangaea.499594
title: Physical oceanography from BT during cruise U90XX08733B_1975
DOI: 10.1594/pangaea.711910
title: Pollen profile LACOTE, La Cote-Vercors, France

description: The EPD (http://www.europeanpollendatabase.net) accepted species name is given in the parameter comment. This dataset was archived on 2010-05-11 from the EPD database.
DOI: 10.1594/pangaea.495012
title: Water temperature XBT profiles from cruise K7438_1983
DOI: 10.1594/pangaea.499625
title: Physical oceanography from BT during cruise U99X000396B_1973
DOI: 10.1594/pangaea.740222
title: Age determination of sediment core BOGUDA, Lake Boguda, Russia

description: This dataset was archived on 2010-05-11 from the EPD database (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.829055
title: Magnetic remanence on discrete pieces from IODP Hole 339-U1387C

description: Geocode = Depth CSF-A (m)
DOI: 10.1594/pangaea.495035
title: Water temperature XBT profiles from cruise K7441_1977
DOI: 10.1594/pangaea.908540
title: Microsensor analyses of oxygen and pH at sediment surface in core LZUG_2 from Lake Zug
DOI: 10.1594/pangaea.498614
title: Physical oceanography from BT during cruise U90V207629B_1983
DOI: 10.1594/pangaea.509885
title: Total organic carbon, nitrogen and phosphorus oxygen content of sediment core M1_169SK, Arabian Sea, African continental margin (Appendix)
DOI: 10.1594/pangaea.870271
title: Links to master tracks in different resolutions from POLAR 2 flight NGRIP_1997_02
DOI: 10.1594/pangaea.822216
title: Meteorological measurements in the upper air at station Krasniy Chikoi, 1954-04-19 to 1954-09-22, ERA-CLIM ID 4560
DOI: 10.1594/pangaea.712087
title: (Table 1) Sr-Nd-Pb isotopic compositions of samples from ODP Hole 183-1137

description: Basalts forming the floor of the Indian Ocean are geochemically distinct from those of the Atlantic and Pacific Oceans. These differences have been attributed to a deeply recycled continental component or to widespread dispersion of plume-type mantle within the Indian Ocean asthenosphere. The discovery of Proterozoic continental crustal rocks within the uppermost basaltic basement of Elan Bank, part of the Kerguelen Plateau, shows instead that direct shallow-level contamination of basaltic magmas by isolated continental crust fragments may have produced the anomalous isotopic ratios of some Indian Ocean basalts.
description: 87Sr/88Sr values are normalized to 86Sr/88Sr = 0.1194. The average value of NBS 987 over the course of the study is 0.710272+/-0.000009 (n = 45). 143Nd/144Nd values are normalized to 146Nd/144Nd = 0.7219. The average value of Merck Nd standard over the course of this study is 0.511963+/-0.000009 (n = 64). Pb isotropic ratios are corrected by a factor of 1.0007 per atomic mass unit for mass fractionation on the basis of repeated analyses of the standard NBS 981. 206Pb/204Pb and 207Pb/204Pb are measured with a precision of 0.1‰ and 208Pb/204Pb of 0.15‰.
description: Supplement to: Weis, Dominique A M; Ingle, Stephanie; Damasceno, Dimitri; Frey, Frederick A; Nicolaysen, Kirsten P; Barling, Jane; Shipboard Scientific Party (2001): Origin of continental components in Indian Ocean basalts: Evidence from Elan Bank (Kerguelen Plateau, ODP Leg 183, Site 1137). Geology, 29(2), 147-150
DOI: 10.1594/pangaea.896855
title: Carbon, nitrogen, stable carbon isotopes and radionuclides in the sediment core B2 from Berau, Indonesia

description: What was sampled: Mangrove sedimentParameter measured and method:1. Organic carbon (Corg), analyzed using elemental analyzer (Eurovector E3000 Elemental Analyzer)2. Total nitrogen (N), analyzed using elemental analyzer (Eurovector E3000 Elemental Analyzer)3. Stable carbon isotope composition (δ13Corg), analyzed using Thermo Finnigan Delta plus mass spectrometer coupled to a Flash EA1112 Elemental Analyzer4. Gamma emitting radionuclides, measured using non-destructive high resolution, low background HPGe gamma spectroscopy (Canberra Inc.)Where was sampled: Berau, East Kalimantan, IndonesiaWhen was sampled: Sediment samples were taken in May 2013How it was sampled: Mangrove sediments were collected using a 1 m long semi-cylindrical auger. Sediments were taken down to 1 m depth, and were sampled in 5 cm interval.
DOI: 10.1594/pangaea.495040
title: Water temperature XBT profiles from cruise K7441_1982
DOI: 10.1594/pangaea.496724
title: Physical oceanography from BT during cruise K06XXB_1955
DOI: 10.1594/pangaea.747063
title: Meteorological observations during SEVERN cruise from Plymouth to Plymouth started at 1752-05-03
DOI: 10.1594/pangaea.787106
title: (Table T4) Bedding axis, number of faults and core observations of samples from ODP Leg 180 sites

description: More than 2 km of Formation MicroScanner (FMS) electrical images were acquired during Ocean Drilling Program Leg 180 at Sites 1109, 1115, and 1118 along a north-south-trending transect across the northern margin of the western Woodlark Basin. These data are analyzed to complement the shipboard core structural observations with oriented measurements. Unambiguous fractures are identified only in the dolerite at the bottom of Hole 1109D. Strike is mainly east-west, and dip ranges from 5° to 30°. Only few fractures are identified in the sediments of Sites 1118, 1109, and 1115, even though they were frequently observed in cores. Bedding orientation deviates from subhorizontal only in a few intervals. These deviations are often associated with fracturing and are compatible with horizontal axis folding. This geometry suggests two possible interpretations: gravity-driven slumping and growth faulting or tectonic-driven extension associated with folding. These two processes may result in similar structural axis orientation along the east-west strike of the Moresby detachment. Full borehole dynamic and static FMS image coverage is also provided and is related to the lithologies described in cores. Typical dynamic image facies of sandy, calcareous, and clayey formations are shown in a catalog of larger-scale images. The static image, which is directly related to resistivity, seems to be mainly controlled by carbonate content, as also suggested by conventional logs.
description: Supplement to: Célérier, Bernard; Louvel, Véronique; Le Gall, Bernard; Gardien, Véronique; Huchon, Philippe (2002): Presentation and structural analysis of FMS electrical images in the northern margin of the Woodlark Basin. In: Huchon, P; Taylor, B; Klaus, A (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 180, 1-159
DOI: 10.1594/pangaea.495041
title: Water temperature XBT profiles from cruise K7441_1983