cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.809741
title: (Table 2) Methane to ethane ratio, and δ¹³C-methane at DSDP Hole 76-533

description: Natural gas hydrates are clathrates in which water molecules form a crystalline framework that includes and is stabilized by natural gas (mainly methane) at appropriate conditions of high pressures and low temperatures. The conditions for the formation of gas hydrates are met within continental margin sediments below water depths greater than about 500 m where the supply of methane is sufficient to stabilize the gas hydrate. Observations on DSDP Leg 11 suggested the presence of gas hydrates in sediments of the Blake Outer Ridge. Leg 76 coring and sampling confirms that, indeed, gas hydrates are present there. Geochemical evidence for gas hydrates in sediment of the Blake Outer Ridge includes (1) high concentrations of methane, (2) a sediment sample with thin, matlike layers of white crystals that released a volume of gas twenty times greater than its volume of pore fluid, (3) a molecular distribution of hydrocarbon gases that excluded hydrocarbons larger than isobutane, (4) results from pressure core barrel experiments, and (5) pore-fluid chemistry. The molecular composition of the hydrocarbons in these gas hydrates and the isotopic composition of the methane indicate that the gas is derived mainly from microbiological processes operating on the organic matter within the sediment. Although gas hydrates apparently are widespread on the Blake Outer Ridge, they probably are not of great economic significance as a potential, unconventional, energy resource or as an impermeable cap for trapping upwardly migrating gas at Site 533.
description: Supplement to: Kvenvolden, Keith A; Barnard, Patrick L (1983): Gas hydrates of the Blake Outer Ridge Site 533, Deep Sea Drilling Project Leg 76. In: Sheridan, RE; Gradstein, FM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 76, 353-365
DOI: 10.1594/pangaea.761308
title: Meteorological synoptical observations from station Lindenberg (2006-03)
DOI: 10.1594/pangaea.779342
title: Corephotos from IODP Hole 317-U1352B

description: Geocode = Depth CSF-A (m).These files are stored as PNG images at 2200 X 3400 pixels.The layout displays the archive halves of an entire core laid out left to right (top of core to bottom) with color and meter rule references.
DOI: 10.1594/pangaea.917077
title: 1-Hz PPP displacements at GEONET station 0902 during the 2011 Tohoku Mw9.0 earthquake
DOI: 10.1594/pangaea.809510
title: (Table 2) Elements in kerogen at DSDP Hole 77-535
DOI: 10.1594/pangaea.809514
title: (Table 1) Lithology at DSDP Hole 77-535
DOI: 10.1594/pangaea.845334
title: Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2010

description: Radiosonde data homogenization by Markus Kayser
DOI: 10.1594/pangaea.925284
title: Pollen content of profile No 85/1 of gravel pit Northeim_PitB

description: The pollen spectra belong to Pollen zones V (Boreal) and VI (Atlantic) at least.
DOI: 10.1594/pangaea.925285
title: Pollen content of profile No 85/2 of gravel pit Northeim_PitB

description: The pollen spectra of samples above the hiatus belong to Pollen zones VI and VII (Atlantic), the lower samples probably to Pollenzone IV (Preboreal)
DOI: 10.1594/pangaea.925341
title: Pollen content of profile No 85/3 of gravel pit Northeim_SiteC

description: Sample 12 (Layer C): Pollen zone X (Late Subatlantic) Samples 10 and 11 (Layer B): Pollen zone IX (Early Subatlantic)Samples 8 and 9: Pollen zone VIII (Subboreal)Samples 5, 6 and 7: Pollen zones VI and VII (Atlantic)Samples 1 and 2 (Layer A): Pollen zone V (Boreal)Sample 3 (peat block): Pollen zone IV (Preboreal)Sample 4 (peat block): Pollen zone III (Younger Dryas)
DOI: 10.1594/pangaea.719905
title: Ultra-violet measurements from station Desert Rock (2009-03)

description: UV-b values were originally given in mW/m² and then erroneously imported in W/m² using the same numbers. The numbers have been corrected (divided by 1000) on 2017-02-08.
DOI: 10.1594/pangaea.921648
title: (Table 3) Total organic carbon concentration and Hydrogen/Oxygen indices of sediment core PET09P2 from Lake Petit (Southern French Alps)
DOI: 10.1594/pangaea.925351
title: Macroremain content of gravel pit Northeim_SiteE

description: Sample taken from a layer of silt, accessible in a deepening aside an oak trunk, lying in the gravel, a little above the middle of the trunk.According to H.H. Leuschner the oak tree had died A.D. 896 (Jordan 1986). Correspondigly the silt contains pollen of cultivated plants like Secale, Triticum, Linum usitatissimum and of weeds like Centaurea cyanus.Silt and oak trunk must, however, not be of the same age.The pollen spectrum of ths sample belongs to Pollen zone X (Late Subatlantic)
DOI: 10.1594/pangaea.829252
title: P-Wave velocity (PWC) from IODP Hole 340-U1394B

description: Geocode = Depth CSF-A (m)
DOI: 10.1594/pangaea.925283
title: Macroremain content of profile No 84/3 of gravel pit Northeim_PitA

description: Pollen zones: not known
DOI: 10.1594/pangaea.691212
title: Nutrient concentrations in water samples collected at Station MARCH-94-GN3619940280101010 in the Aegean Sea
DOI: 10.1594/pangaea.752896
title: Meteorological observations during WILLEM cruise from Nederland to Batavia started at 1846-01-12
DOI: 10.1594/pangaea.707668
title: Meteorological synoptical observations from station Payerne (2006-01)
DOI: 10.1594/pangaea.925266
title: Pollen content of profile No 84/5 of gravel pit Northeim_PitA

description: The pollen spectra belong to Pollen zones IV (Preboreal) and VIII (Subboreal).
DOI: 10.1594/pangaea.927303
title: XRF scans (Br, Cl, Rb, Zr) obtained from sediment sequences GeoHH-FK (south-eastern North Sea)
DOI: 10.1594/pangaea.927304
title: XRF scans (Br, Cl, Rb, Zr) obtained from sediment sequences TB13-1 (south-eastern North Sea)
DOI: 10.1594/pangaea.809480
title: (Table 3) Soil temperatures at 10 cm depth after different treatments of wet sedge meadows on Ellesmere Island

description: Wet sedge tundra communities in the High Arctic are valuable sources of forage for several resident and migratory herbivores; however, the effects of grazing on these systems have been rarely studied. We simulated grazing in two wet sedge meadows at a site on Ellesmere Island that has not been affected by grazing. Over two summers, we clipped plots at four different frequencies and removed litter to assess effects on aboveground net primary production, availability of soil nitrogen, shoot concentrations of carbon and nitrogen, and soil temperature and moisture regimes. Available soil nitrate and ammonium were highest in plots with intermediate clipping frequencies. Shoot nitrogen concentrations were also greater at intermediate clipping frequencies in two of the four species studied. Aboveground net primary production decreased after clipping, regardless of frequency. Litter removal resulted in slightly increased soil moisture, but had no effect on aboveground net primary production. Soil temperature was not affected by any of our treatments. These results suggest that nitrogen cycling is stimulated by intermediate frequencies of simulated grazing, but clipping decreased aboveground net primary production in ungrazed high arctic wet sedge tundra.
description: Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
description: Supplement to: Elliott, Tammy L; Henry, Gregory HR (2011): Effects of Simulated Grazing in Ungrazed Wet Sedge Tundra in the High Arctic. Arctic, Antarctic, and Alpine Research, 43(2), 198-206
DOI: 10.1594/pangaea.927305
title: Relative grain size distribution obtained from sediment sequences GeoHH-FK (south-eastern North Sea)
DOI: 10.1594/pangaea.927306
title: Relative grain size distribution obtained from sediment sequences TB13-1 (south-eastern North Sea)
DOI: 10.1594/pangaea.751605
title: Meteorological observations during PROSERPINA cruise from Texel to Suriname started at 1802-09-02
DOI: 10.1594/pangaea.757537
title: Radiosonde measurements from station Ny-Ålesund (2010-09)

description: The Ny-Ålesund radiosonde program is part of the GCOS Reference Upper-Air Network (GRUAN). Please consider using the Ny-Alesund reference radiosonde data with higher temporal resolution and uncertainty values for all height levels, available via http://www.gruan.org.
DOI: 10.1594/pangaea.724463
title: Zooplankton time series at station Point B in 1971
DOI: 10.1594/pangaea.925267
title: Pollen content of profile No 84/52 of gravel pit Northeim_PitA

description: The pollen spetrum seems to belong to Pollen zone III (Younger Dryas). If so it contains much reworked pollen.Radiocarbon age: wood of Salix, Hv-13276, 10800+/-310 BP; calibrated: 10662+/-407 calBC
DOI: 10.1594/pangaea.925352
title: Macroremain content of gravel pit Northeim_SiteE

description: Sample taken from a layer of silt, accessible in a deepening aside an oak trunk, lying in the gravel, a little above the middle of the trunk.According to H.H. Leuschner the oak tree had died A.D. 896 (Jordan 1986). Correspondigly the silt contains pollen of cultivated plants like Secale, Triticum, Linum usitatissimum and of weeds like Centaurea cyanus.Silt and oak trunk must, however, not be of the same age.The pollen spectrum of ths sample belongs to Pollen zone X (Late Subatlantic)
DOI: 10.1594/pangaea.906146
title: Very high-rate GNSS PPP displacements during the 2013 Lushan Mw6.6 earthquake (waveforms at YAAN)
DOI: 10.1594/pangaea.720380
title: Documentation of sediment core GIK15623-1
DOI: 10.1594/pangaea.724464
title: Zooplankton time series at station Point B in 1972
DOI: 10.1594/pangaea.724465
title: Zooplankton time series at station Point B in 1973
DOI: 10.1594/pangaea.779272
title: Line scans from IODP Hole 317-U1351B

description: Geocode = Depth CSF-A (m).These images were taken of the flat face of split cores on the Section Half Imaging Logger (SHIL) using a line scan camera at 10 lines/mm. Cores are imaged as soon as possible after splitting to minimize color changes that occur through oxidation and drying.
DOI: 10.1594/pangaea.548283
title: Physical oceanography at CTD station Bm_1997-08-29_4, Bajo Molle, Chile
DOI: 10.1594/pangaea.828335
title: Core summary for IODP Hole 323-U1345B
DOI: 10.1594/pangaea.779284
title: Line scans from IODP Hole 317-U1352A

description: Geocode = Depth CSF-A (m).These images were taken of the flat face of split cores on the Section Half Imaging Logger (SHIL) using a line scan camera at 10 lines/mm. Cores are imaged as soon as possible after splitting to minimize color changes that occur through oxidation and drying.
DOI: 10.1594/pangaea.927084
title: Grain size distribution of sediment core Co1412 in the Yana Highlands

description: The sediment succession of Lake Emanda in the Yana Highlands was investigated to reconstruct the regional late Quaternary climate and environmental history. Hydro-acoustic data obtained during a field campaign in 2017 show laminated sediments in the north-western and deepest (up to ~15 m) part of the lake, where a ~6-m-long sediment core (Co1412, latitude 65°17.6490N, longitude 135°45.5540E) was retrieved. The sediment core was studied with a multi-proxy approach including sedimentological and geochemical analyses. The chronology of Co1412 is based on 14C AMS dating on plant fragments from the upper 4.65 m and by extrapolation, suggesting a basal age of c. 57 cal. ka BP. Grain size distribution of sediment core Co1412: Clay (%), silt (%), sand (%) content of sediment Co1412 against composite depth (cm) and age (cal. a BP).
DOI: 10.1594/pangaea.724472
title: Zooplankton time series at station Point B in 1980
DOI: 10.1594/pangaea.926875
title: Archaeobotanical analyses at Oldenburg 108, Burgstrasse, Lower Saxony, Germany - sample

description: From two profiles of an archaeological trench in the centre of the city Oldenburg 108, Burgstr. , Lower Saxony, two largely overlapping cores, 50 (length) x 10 (width) x 5 (thickness) cm, of highly organic sediments were taken and one sample of about 2 l in a plastic bag from the northern profile 44 in 2005 (June 2nd). Subsamples were taken following the layers in the metal boxes, sieved in the laboratory using stacked sieves of mesh-sizes 1, 0.71 and 0.3 mm and botanical macroremains were picked out using a microscope (magnification 10x-50x), identified and counted in the course of 2006. The identified remains (seeds, fruits, vegetative remains, zoological remains) dating to the Late Medieval were assigned to ecological groups allowing the reconstruction of the environmental conditions at the time of deposition. The aims of the analyses were to reveal which human activities took place at the place, which cultural plants can be traced, which structures were present, what kind of sediment has been investigated (the preliminary assumption by the archaeologists has been peat) and how old are the remains/features.
DOI: 10.1594/pangaea.779238
title: (Table T6) Major element oxides of silicates in massive and semimassive sulfides of ODP Site 193-1189

description: Curated sediment depth is given in mbsf.
DOI: 10.1594/pangaea.779255
title: (Appendix) Demagnetization steps of ODP Hole 129-801C basalts
DOI: 10.1594/pangaea.829093
title: Core summary for IODP Hole 340-U1396B
DOI: 10.1594/pangaea.886059
title: (Table S2) Numbers and carapace widths of Hemigrapsus sanguineus sampled around Helgoland, August 2014

description: tidal level: high-level, mid-level, low-level.no. replicate: 1, 2, 3, 4.
DOI: 10.1594/pangaea.721614
title: Ultra-violet measurements from station Fort Peck (2003-03)

description: Version 2, 2009-06-19. UV-b values were originally given in mW/m² and then erroneously imported in W/m² using the same numbers. The numbers have been corrected (divided by 1000) on 2017-02-03.
DOI: 10.1594/pangaea.906144
title: Very high-rate GNSS PPP displacements during the 2013 Lushan Mw6.6 earthquake (waveforms at QLAI)
DOI: 10.1594/pangaea.674636
title: Radiosonde measurements from station Kwajalein (2004-05)
DOI: 10.1594/pangaea.836128
title: High-resolution in situ seawater temperature in coral reefs of Tayrona National Natural Park, Colombian Caribbean, at sheltered time series station Neguanje, 2010-2013
DOI: 10.1594/pangaea.906145
title: Very high-rate GNSS PPP displacements during the 2013 Lushan Mw6.6 earthquake (waveforms at SCTQ)
DOI: 10.1594/pangaea.724475
title: Zooplankton time series at station Point B in 1983
DOI: 10.1594/pangaea.881454
title: Basic and other measurements of radiation at station Barrow (2014-03)

description: Please note that relative humidity values might be off and are therefore to be handled with caution.
DOI: 10.1594/pangaea.692922
title: Mesozooplankton abundance during Akademik Kovalevsky cruise AK90, Part I

description: Mesozooplankton was sampled by open-closing JUDAY net with a 36 cm ring diameter and mesh size of 125 µm. The open-closing mechanism used was the Nansen mechanical lock system allowing nets to be vertically towed through standard depths (0-10, 10-25, 25-50, 50-100, 100-200, 200-300, 300-500 m) and closed at the upper depth level. Depth of tow was evaluated by wire paid out and the angle of wire inclination. The 10-20 ml samples were preserved in 3-4% buffered formaldehyde and processed on return to the laboratory. All of copepods were identified to genus level, other taxanomic groups - to type, class, order and family levels.
DOI: 10.1594/pangaea.724480
title: Zooplankton time series at station Point B in 1988
DOI: 10.1594/pangaea.927088
title: Isotope data of sediment core Co1412 in the Yana Highlands

description: The sediment succession of Lake Emanda in the Yana Highlands was investigated to reconstruct the regional late Quaternary climate and environmental history. Hydro-acoustic data obtained during a field campaign in 2017 show laminated sediments in the north-western and deepest (up to ~15 m) part of the lake, where a ~6-m-long sediment core (Co1412, latitude 65°17.6490N, longitude 135°45.5540E) was retrieved. The sediment core was studied with a multi-proxy approach including sedimentological and geochemical analyses. The chronology of Co1412 is based on 14C AMS dating on plant fragments from the upper 4.65 m and by extrapolation, suggesting a basal age of c. 57 cal. ka BP .Isotope data of sediment Co1412: d13Corg=carbon isotopic composition (‰) of sediment Co1412 against composite depth (cm) and age (cal. a BP).
DOI: 10.1594/pangaea.724483
title: Zooplankton time series at station Point B in 1991
DOI: 10.1594/pangaea.880735
title: Radiosonde measurements from station Lindenberg (2013-09)
DOI: 10.1594/pangaea.724484
title: Zooplankton time series at station Point B in 1992
DOI: 10.1594/pangaea.724487
title: Zooplankton time series at station Point B in 1995
DOI: 10.1594/pangaea.497759
title: Physical oceanography from BT during cruise U58PR00032B_1958
DOI: 10.1594/pangaea.862560
title: (Table, page 49) The composition of soil manganese concretions from Oahu Island, Hawaii

description: The island of Oahu is made up of two almost parallel mountain ranges, the Koolau on the east and the Waianae on the west, with a sloping plateau of about 10 miles in width and 40 miles in length between these. This plateau comprises the principal portion of the arable land of Oahu. From the evidences at hand, the soil and deeper-lying disintegration products have resulted principally from the primary decomposition of normal basalt, under the influence of the usual weathering agencies incident to a humid subtropical climate. At intervals in this upland plain, there are areas which contain large quantities of manganese. Manganese concretions occur throughout the manganiferous soils of Oahu. Their chemical composition is similar to that of the manganese nodules found in the deep sea around the Hawaiian island during the Challenger expedition.
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.
description: Supplement to: Kelley, WP (1912): The function and distribution of manganese in plants and soils. Bulletin (Hawaii Agricultural Experiment Station), 26, 56 pp
DOI: 10.1594/pangaea.927089
title: XRF analysis of sediment core Co1412 in the Yana Highlands

description: The sediment succession of Lake Emanda in the Yana Highlands was investigated to reconstruct the regional late Quaternary climate and environmental history. Hydro-acoustic data obtained during a field campaign in 2017 show laminated sediments in the north-western and deepest (up to ~15 m) part of the lake, where a ~6-m-long sediment core (Co1412, latitude 65°17.6490N, longitude 135°45.5540E) was retrieved. The sediment core was studied with a multi-proxy approach including sedimentological and geochemical analyses. The chronology of Co1412 is based on 14C AMS dating on plant fragments from the upper 4.65 m and by extrapolation, suggesting a basal age of c. 57 cal. ka BP. XRF analysis of sediment core Co1412: Mn/Fe=Manganese/Iron, K/Ti=Potassium/Titanium, Fe=Iron (cps) data of sediment Co1412 against composite depth (cm) and age (cal. a BP).
DOI: 10.1594/pangaea.898494
title: Ultra-violet measurements from station Bondville (2019-01)
DOI: 10.1594/pangaea.844221
title: X-ray fluorescence on sediment core MSM12/647-1 (raw data from XRF-core scanner)
DOI: 10.1594/pangaea.875330
title: Snow height on sea ice and sea ice drift from autonomous measurements from buoy 2015S29, deployed during POLARSTERN cruise PS94 (ARK-XXIX/3)

description: Snow height was measured by the Snow Depth Buoy 2015S29, an autonomous platform, drifting on Arctic sea ice, deployed during POLARSTERN cruise PS94 (ARK-XXIX/3). The resulting time series describes the evolution of snow depth as a function of place and time between 27 Sep 2015 and 16 Oct 2016 in sample intervals of 1 hour. The Snow Depth Buoy consists of four independent sonar measurements representing the area (approx. 10 m**2) around the buoy. The buoy was installed on first year ice. In addition to snow depth, geographic position (GPS), barometric pressure, air temperature, and an internal ice temperature were measured. Negative values of snow height occur if surface ablation continues into the sea ice. Thus, these measurements describe the position of the sea ice surface relative to the original snow-ice interface. Differences between single sensors indicate small-scale variability of the snow pack around the buoy. The data set has been processed, including the removal of obvious inconsistencies (missing values). Records without any snow depth may still be used for sea ice drift analyses.
DOI: 10.1594/pangaea.724494
title: Zooplankton time series at station Point B in 2002
DOI: 10.1594/pangaea.916574
title: 1-Hz PPP displacements at GEONET station 0376 during the 2011 Tohoku Mw9.0 earthquake
DOI: 10.1594/pangaea.511766
title: Physical oceanography and CFC measured on water bottle samples at station M59/2_574
DOI: 10.1594/pangaea.820404
title: Lucky Strike record of hydrothermal outflow temperature at vent SC_V01_110703_110716_HW0018A

description: The temperature record include ambient temperatures (onboard the ship), water column temperatures (going up and down) and the hydrothermal temperatures.
DOI: 10.1594/pangaea.724460
title: Zooplankton time series at station Point B in 1968
DOI: 10.1594/pangaea.926871
title: Archaeobotanical analyses at Oldenburg 108, Burgstrasse, Lower Saxony, Germany - feature

description: From two profiles of an archaeological trench in the centre of the city Oldenburg 108, Burgstr. , Lower Saxony, two largely overlapping cores, 50 (length) x 10 (width) x 5 (thickness) cm, of highly organic sediments were taken and one sample of about 2 l in a plastic bag from the northern profile 44 in 2005 (June 2nd). Subsamples were taken following the layers in the metal boxes, sieved in the laboratory using stacked sieves of mesh-sizes 1, 0.71 and 0.3 mm and botanical macroremains were picked out using a microscope (magnification 10x-50x), identified and counted in the course of 2006. The identified remains (seeds, fruits, vegetative remains, zoological remains) dating to the Late Medieval were assigned to ecological groups allowing the reconstruction of the environmental conditions at the time of deposition. The aims of the analyses were to reveal which human activities took place at the place, which cultural plants can be traced, which structures were present, what kind of sediment has been investigated (the preliminary assumption by the archaeologists has been peat) and how old are the remains/features.
DOI: 10.1594/pangaea.845338
title: Homogenized radiosonde record at station Ny-Ålesund, Spitsbergen in 2014

description: Radiosonde data homogenization by Markus Kayser
DOI: 10.1594/pangaea.910183
title: Other measurements at 10 m from station Boulder, SURFRAD (2019-02)
DOI: 10.1594/pangaea.691122
title: Nutrient concentrations in water samples collected at Station DEC94-JAN95-GN3619940280400561 in the Aegean Sea