cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.847465
title: (Table 1) Representative analyses of the main minerals in samples from East Antarctica

description: Biotite and white mica: structural formulae on the basis of 22 oxygens. Ca-amphibole: ferrous and ferric iron contents determined by charge balance and structural formulae on the basis of 23 oxygens and 13 cations excluding Ca+Na+K. Plagioclase: structural formulae on the basis of 8 oxygens. Garnet: structural formulae on the basis of 12 oxygens and 8 cations. Pyroxenes: structural formulae on the basis of 6 oxygens.
DOI: 10.1594/pangaea.770819
title: (Table 1) Major element concentrations of selected samples of ODP Leg 125 holes
DOI: 10.1594/pangaea.770858
title: (Table 3) Trace and rare earth element concentrations in minerals of ODP Leg 125 peridotites
DOI: 10.1594/pangaea.863068
title: (Table 2, page 225) The composition of manganese nodules from the Scotia basin and the M. Ewing bank in the Southern Atlantic

description: 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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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.
DOI: 10.1594/pangaea.763137
title: (Table 4) Normalized major- and trace element analyses of ODP Site 125-786 samples

description: Sediment depth is given in mbsf. Data presented normalized to a major-element total of 100 % volatile-free.
DOI: 10.1594/pangaea.805901
title: (Table 1) Au and Pd contents and geochemical characteristics of samples from DSDP/ODP Hole 504B
DOI: 10.1594/pangaea.818106
title: (Table 6) Geochemistry of carbonates at DSDP Site 65-482
DOI: 10.1594/pangaea.823270
title: (Table 4) Interrelations among major elements at DSPD Leg 55 Holes

description: Empty cells mean no data.
DOI: 10.1594/pangaea.770857
title: (Table 2) Major and trace element concentrations in the bulk-rock peridotites of ODP Leg 125 holes
DOI: 10.1594/pangaea.817250
title: (Table 1) Heavy-mineral analyses for DSDP Leg 67 Holes from electron microprobe

description: Heavy and light minerals were examined in 29 samples from Sites 494, 498, 499, 500, and 495 on the Deep Sea Drilling Project Leg 67 Middle America Trench transect; these sites represent lower slope, trench, and oceanic crust environments off Guatemala. All samples are Quaternary except those from Hole 494A (Pliocene) and Hole 498A (Miocene). Heavy-mineral assemblages of the Quaternary sediments are characterized by an immature pyroxene-amphibole suite with small quantities of olivine and epidote. The Miocene sediments yielded an assemblage dominated by epidote and pyroxene but lacking olivine; the absence of olivine is attributed to selective removal of the most unstable components by intrastratal solution. Light-mineral assemblages of all samples are predominantly characterized by volcanic glass and plagioclase feldspar. The feldspar compositions are compatible with andesitic source rocks and frequently exhibit oscillatory zoning. The heavy- and light-mineral associations of these sediments suggest a proximal volcanic source, most probably the Neogene highland volcanic province of Guatemala. Sand-sized components from Site 495 are mainly biogenic skeletons and volcanic glass and, in one instance (Section 495-5-3), euhedral crystals of gypsum.
DOI: 10.48577/jpl.bjyctj
title: Superconducting heat switch made from a transition metal

description: High sensitivity astrophysics detectors such as transition edge sensor (TES) bolometers or microwave kinetic inductance detectors (MKIDs) require sub-Kelvin operating temperatures for observing low energy photons in infrared and x-ray ranges. Continuous Adiabatic Demagnetization Refrigerators (CADRs) are presently the state of the art solution for providing cooling to these detectors below as low as 50 mK. The CADR shuttles heat through a series of paramagnetic stages from a 50 mK heat load to a 1-6+ K heat sink, using heat switches between stages to “switch" between thermal isolation and thermal communication. A superconducting heat switch is required between the two lowest temperature stages and is considered a critical system component as it determines recycling time and cooling power of the lowest temperature stage. A figure of merit for this technology is the “switching ratio”: the ratio of the thermal conductivity in the on and off states. This ratio is a function of temperature, fixed material properties, and the purity and anneal state of the metal. Lead is most commonly used in this type of thermal switch because it is readily available as a high purity material. However, an analysis of the material properties of other superconducting material suggests that transition metals such as tantalum and vanadium could achieve a significantly higher switching ratio – as high as 5-10 times that of lead. Increasing the switching ratio could allow for shorter recycling times and reduce the parasitic load on the lowest temperature stage. This work discusses relevant properties of various potential heat switch material and compares predicted performance in the CADR against the presently used lead switch.
DOI: 10.1594/pangaea.759844
title: (Table 1) Occurence and age of sapropels from different ODP Leg 107 holes

description: Sediment depth is given in mbsf. Ages from Leg 107-650A were interpolated between Base NN21 (0.26 Ma) al 147.9 mbsl, Brunhas/Matuyarna boundary (0.73 Ma) at 415 mbsl and top Olduvai (11.67 Ma) at 580 mbsf. Ages from Leg 107-651A were interpolated between Brunhes/Matuyama boundary (0.73 Ma) at 309.4 mbsf and top of Olduvai (1.67 Ma) at 341.7 mbsf. Biostratigraphie Datums from Leg 107-653A were used to calculate Ages in Hole 653B.
DOI: 10.1594/pangaea.778214
title: (Table 1) Atterberg limits of normally consolidated for whole-rock samples from ODP Holes 128-798B and 128-799A
DOI: 10.48577/jpl.wjng3y
title: Deep Space Optical Communications from the Psyche Mission

description: The Deep Space Optical Communications (DSOC) technology demonstration is a hosted payload on the Psyche Mission spacecraft that launched October 2023. Contacts at a weekly cadence between the flight laser terminal, ground laser transmitter station, and ground laser receiver station are occurring since November 2023 as the Psyche spacecraft moves farther from Earth from 0.05 to 2.5 AU. Several key technologies have been developed and demonstrated during operations with downlink data rates up to 267 Mbps at 0.37 AU to the 5m Hale telescope ground receiver aperture.
DOI: 10.1594/pangaea.767562
title: (Table 2) Distribution of iron-manganese nodules and buried interlayers of oxidized sediments in cores from the East Indian Ocean
DOI: 10.1594/pangaea.775194
title: (Table T1) Barium in pore fluid of sediments from ODP Leg 170 and Leg 205 sites
DOI: 10.1594/pangaea.778352
title: (Appendix) Lithologic description of samples barren of nannofossils from ODP Site 197-1204

description: Abundance estimates as follows: C = common, F = few, R = rare, V = very rare.
DOI: 10.1594/pangaea.780191
title: (Table T3) Calcareous nannofossil abundance of ODP Site 189-1171 sediments

description: Sediment depth is given in mbsf. Abundance estimates as follows: A = abundant, C = common, F = few, R = rare, B = barren, - = not found.
DOI: 10.1594/pangaea.740968
title: (Table 16) Chemical composition of phosphatized rocks from volcanic seamounts of the Central Atlantic
DOI: 10.1594/pangaea.744057
title: (Table 1) Chemical element contents in bottom sediments from the Bulgarian shelf of the Black Sea
DOI: 10.1594/pangaea.733081
title: (Table 29) Data of X-ray radiographic analyses of clay minerals from DSDP Site 48-402/Hole 402A
DOI: 10.1594/pangaea.777802
title: (Table 1) Concentration of Fe, Mn, Cu, Zn, Co, Ni, Pb, Cd, B, and SiO2 in interstitial waters from bottom sediments of the Atlantis II Deep, Red Sea rift zone

description: 0 = not found.
DOI: 10.1594/pangaea.849246
title: Illustration of ferromanganese concretions retrieved from the lakes of Western Finland

description: 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.
DOI: 10.1594/pangaea.856816
title: Biomass of invertebrate bycatch on the East- and West-Greenland shelf during Walther Herwig III cruise WH379

description: The study on invertebrate communities in East- and West-Greenland shelf waters was embedded in a fisheries survey carried out during the 379th expedition of the German fisheries vessel Walther Herwig III of the Thünen Institute of Sea Fisheries, Hamburg, Germany. The aim of the study was a coarse classification of the bycatch comprising macrobenthic organisms. On the one hand the marine ecosystem of this area provides food for commercially valuable fish stocks and plays, potentially an important role in the remineralisation of nutrients. On the other hand it experiences stress by traditional bottom trawling as well as anthropogenic and natural climate variability. As a consequence the study can provide a baseline to detect further changes in the composition of this component of a sub-arctic marine ecosystem.
description: Bottom water temperature measured by a sensor attached to the headrope of the trawl. Trawl distance was calculated using Meeus' great circle and WGS84. The opening of the commercial 140 ft. otter trawl was on average 20 m and the height 2.5 m. 21 inch-steel bobbins and rubber disks were attached to the footrope. The trawl had a mesh size (stretched) of 80 mm and of 20 mm in the cod end. Event 1 refers to the end of paying out the ropes and event 2 refers to the start of hauling up the trawl, assuming that the time in-between both events marks the period of efficient fishing.
DOI: 10.1594/pangaea.588221
title: Hydrographic parameters and diatom analysis on standard oceanographic levels during E. W. Scripps cruise EWS-XI
DOI: 10.1594/pangaea.780092
title: (Table T5) Biomagnetostratigraphic datums of ODP Leg 189 sites
DOI: 10.1594/pangaea.526618
title: Pore water geochemical analysis of sediment core GIK12331-1/2, NW African continental margin (Table XII)
DOI: 10.1594/pangaea.733182
title: Physical oceanography during Moana Wave cruise HOT-40 on section PRS2
DOI: 10.1594/pangaea.855477
title: (Supplement) Abundance of benthic macrofauna sampled near Sylt (German Bight)

description: Samples were taken at 45 stations approximately 3.5 km west of the island Sylt (German Bight) by using a 0.1 m² Van Veen grab. At each station two grabs were taken. Samples for macrofaunal analyses were sieved onboard over 1 mm mesh size, and the retained material was fixed with 4% buffered formaldehyde. Samples of coarse grained sediments were decanted before sieving. In the laboratory the samples were sieved again over 1 mm mesh size, organisms were stained with Rose Bengal and sorted. After sorting, the organisms were identified to species level. Data were given as average of the two replicates at each station.
DOI: 10.1594/pangaea.759177
title: Physical oceanography during Håkon Mosby cruise HM97/2
DOI: 10.48577/jpl.gxq0k4
title: Characteristics of an Additively Manufactured Titanium Oscillating Heat Pipe

description: Isothermalization of spacecraft structures is often necessary for JPL’s science missions. Oscillating heat pipes (OHPs) are compact devices that utilize latent heat to passively isothermalize a surface with tremendous effect. These OHP channels can be embedded within a structure of any geometry with additive manufacturing to significantly increase the effective conductivity of the material. OHPs have previously been made with aluminum to maximize heat transfer capability but OHPs can also greatly enhance materials such as titanium with poor thermal conduction. In spacecraft design, titanium is a desirable material due to its structural strength, but is often not used in key thermal infrastructure due to its low conductivity unless thermal isolation is required. Therefore, isothermalizing materials that have previously been disqualified from design applications due to poor thermal performance opens up new possibilities for efficient design. As a result, a novel additively manufactured titanium OHP has been developed to characterize the performance of OHP technology within low-conducting materials. The prototype OHP is embedded in a flat plate sample as a monolithic piece, thus removing any internal interface resistances, with 42 turns and a working fluid of R-134a as is consistent with other material OHP tests. Furthermore, the prototype shows a two-orders of magnitude increase in thermal conductivity compared to normal titanium. This study demonstrates the design, manufacturing, and thermal performance characteristics of the prototype titanium OHP and its potential for thermal design moving forward.
DOI: 10.1594/pangaea.729003
title: (Table T47) Parameter b of clay minerals replacing olivines in basalts of alkaline and tholeiitic series from Emperor Seamount chain, Leg 55: Holes 433A and 433C (Suiko seamount)
DOI: 10.1594/pangaea.771625
title: Physical oceanography during Walther Herwig III cruise WH196
DOI: 10.1594/pangaea.767572
title: (Table 3) Sedimentation rates of stage 1 and last glacial maximum from different Holes during cruises of RRS Discovery in 1984-1985 and 1987-1988, and RRS James Clark Ross in 1992-1993

description: Within the Scotia Sea, the axis of the Antarctic Circumpolar Current (ACC) is geographically confined, and sediments therefore contain a record of palaeo-flow speed uncomplicated by ACC axis migration. We outline Holocene and Last Glacial Maximum (LGM) current-controlled sedimentation using data from 3.5-kHz profiles, cores and current meter moorings. Geophysical surveys show areas of erosion and deposition controlled by Neogene basement topography. Deposition occurs in mounded sediment drifts or flatter areas, where 500-1000 m of sediment overlies acoustic basement. 3.5-kHz profiles show parallel, continuous sub-bottom reflectors with highest sedimentation rates in the centre of the drifts, and reflectors converging towards marginal zones of non-deposition. Locally, on the flanks of continental blocks (e.g. South Georgia), downslope processes are dominant. The absence of mudwaves on the sediment drifts may result from the unsteadiness of ACC flow. A core transect from the ACC axis south to the boundary with the Weddell Gyre shows a southward decrease in biogenic content, controlled by the Polar Front and the spring sea-ice edge. Both these features lay farther north at LGM. The cores have been dated by relative abundance of the radiolarian Cycladophora davisiana, and by changes in the biogenic Ba content, a palaeoproductivity indicator. Sedimentation rates range from 3 to 17 cm/ka. The grain size of Holocene sediments shows a coarsening trend from south to north, consistent with strongest bottom-current flow near the ACC axis, though interpretation is complicated by the presence of biogenic grains. Year-long current meter records indicate mean speeds from 7 cm/s in the south to 12 cm/s in the north, with benthic storm frequency increasing northwards. LGM sediments are predominantly terrigenous and show a clearer northward-coarsening trend, with well-sorted silts in the northern Scotia Sea. Assuming a constant terrigenous source, this implies stronger ACC flow at the LGM, contrasting with weaker Weddell Gyre flow deduced from earlier work.
DOI: 10.1594/pangaea.793212
title: Varve chronology of the Meerfelder Maar
DOI: 10.1594/pangaea.807888
title: (Table 3) Geochemistry of clinopyroxene at DSDP Holes 80-550B and 80-551
DOI: 10.1594/pangaea.808099
title: (Table 2) Mineralogy at DSDP Site 80-549

description: Sediment depth is given in mbsf. Bulk sediment contained no dolomite, aragonite, or anhydrite.
DOI: 10.1594/pangaea.820688
title: (Table 1) Description of structures in cores at DSDP Holes 59-451, 59-448A and 59-447A

description: Fifteen lengths of Leg 59 cores (primarily from Hole 451 as well as from Holes 447A and 448A) exhibiting macroscopic faults were selected by Dr. R. B. Scott (Co-Chief Scientist, Leg 59) to help us initiate this petrofabric analysis. We proposed to (1) determine what dynamically useful deformation features might be associated with the faults, and (2) infer from these features as much as possible about the physical environment of the deformation (effective pressure, differential stress, temperature, and strain rate), the orientation and relatively magnitudes of the principal stresses at the time of deformation, and the degree of induration of the rocks at the time of deformation. The cores, mainly from Hole 451, had been slabbed on board ship with respect to the trace of bedding so that each cut surface contains the true bedding dip-direction. In general, the cores from Hole 451 are largely calcareous, lithic and vitric, brecciated tuffs, whereas those from Holes 447A and 448A are basalts or basalt breccias.
description: Empty cells mean no data.
description: Supplement to: Friedman, M; White, MA (1981): Structural analysis of selected Leg 59 Cores, Deep Sea Drilling Project. In: Kroenke, L; Scott, R; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 59, 503-508
DOI: 10.1594/pangaea.821194
title: (Table 2) Major-element whole-rock and glass chemistry of flows, dikes, sills, and clasts in breccias between flows from DSDP Site 59-448

description: Empty cells indicates that no analysis was made.
DOI: 10.1594/pangaea.610054
title: Abundance of lower marine fungi in bottom water off Northwest Africa (Table 9,12)
DOI: 10.1594/pangaea.855186
title: (Fig 2, page 399), Distribution of Fe and Mn in ferromanganese nodules of the Eningi-Lampi Lake, Russia

description: The distribution of Mn and Fe in water, sediments, hydroxide nodules and crusts of Eningi-Lampi ore-bearing lake is regular, and concordant from the source to the areas of accumulation of these components. Mn-Fe hydroxide nodules and crusts occur at the water-sediment interface, and more rarely in the upper (0-5 cm) film of brown watery mud. The leading role in the formation of Mn-Fe nodules and crusts is played by the chemosorption and auto-catalytic oxidation in the course of interaction of component-bearing solutions with active surfaces. This is considered to be the basic process for the model of ferromanganese ore formation in recent basins. Despite the differences in the physico-geographical and geochemical characteristics of lakes, mediterranean seas and oceans, the formation of ferromanganese hydroxide nodules and crusts in these basins may be explained by this model.
description: Only the Fe-Mn rich parts of the nodules have been analysed excluding their foreign cores.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: Varentsov, Igor M (1972): On the main aspects of formation of ferromanganese ores in recent basins (lakes). In: Proc. 24th Intl. Geol. Congr., presented at the Mineral Deposits Symposium, 24th International Geological Congress (Montreal), Sect 4, 395-403
DOI: 10.1594/pangaea.883666
title: Chemical composition of manganese nodules from the Southern Ocean using wet chemical analysis

description: Samples have been air dried and reduced to powder. The analysis is done on the whole content and not on the sole HCL soluble part as in most analyses from other authors.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.
DOI: 10.1594/pangaea.753633
title: (Table 11) Interstitial-water chemistry of ODP Site 112-688
DOI: 10.1594/pangaea.601964
title: Oxygen content of the sea water during the winter monsoon on the Indo-Pakistan continental margin (Table 1)
DOI: 10.1594/pangaea.818562
title: (Table 1) Changes in methane concentrations in DSDP Leg 64 Holes sediment tubes

description: Sediment depth is given in mbsf. Depths are calculated by the DSDP convention of measuring down from the top of each core. But in these soft sediments, it is felt that the core catcher (CC) contains material drilled last, and therefore the depths calculated upwards from the core catcher are given (if different) as Depth, reconstructed.
DOI: 10.1594/pangaea.756080
title: (Table 16) Occurrence of Oligocene to middle Eocene events and their ages observed in ODP Holes 115-709C and 115-711A

description: Specimens not identifiable to known species are excluded. Distribution chart: Numbers = calculated percentage in the indigenous flora, figures below the decimals are omitted; F = few (&gt;0.1% and &lt; 1% of indigenous forms); R = rare (&lt;0.1% of indigenous forms); c = common reworked occurrence (&gt; 1% and &lt; 10% of the total flora), f = few reworked occurrence (&gt;0.1% and &lt; 1% of the total flora); r = rare reworked occurrence (&lt;0.1% of the total flora), - = not present.
DOI: 10.1594/pangaea.764054
title: Tab. 2: Thermomagnetic measurements on dyke samples
DOI: 10.1594/pangaea.778104
title: (Table 3) Trace metal content of Pliocene to Pleistocene sediments of ODP Site 127-797
DOI: 10.1594/pangaea.744186
title: Physical oceanography during Dana cruise Dana72/2 to the North Sea
DOI: 10.1594/pangaea.745674
title: Crustacea in surface sediments off Sylt collected during HEINCKE cruise HE236

description: Sample area: 0.02 m**2
DOI: 10.1594/pangaea.745043
title: (Table 15) Isotopic composition of lead from serpentinite and Cu-sphalerite ore of the Rainbow hydrothermal field
DOI: 10.1594/pangaea.763558
title: (Table A) Chemical composition of interstitial waters from sediments and deposits within and outside the Haakon Mosby submarine mud volcano in the Norwegian Sea