cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.733908
title: Bulk geochemical and lipid biomarker data for sediment core W8402A-14

description: Eleven sediment samples taken downcore and representing the past 26 kyr of deposition at MANOP site C (0°57.2°N, 138°57.3°W) were analyzed for lipid biomarker composition. Biomarkers of both terrestrial and marine sources of organic carbon were identified. In general, concentration profiles for these biomarkers and for total organic carbon (TOC) displayed three common stratigraphic features in the time series: (1) a maximum within the surface sediment mixed layer (&lt;=4 ka); (2) a broad minimum extending throughout the interglacial deposit; and (3) a deep, pronounced maximum within the glacial deposit. Using the biomarker records, a simple binary mixing model is described that assesses the proportion of terrestrial to marine TOC in these sediments. Best estimates from this model suggest that ~20% of the TOC is land-derived, introduced by long-range eolian transport, and the remainder is derived from marine productivity. The direct correlation between the records for terrestrial and marine TOC with depth in this core fits an interpretation that primary productivity at site C has been controlled by wind-driven upwelling at least over the last glacial/interglacial cycle. The biomarker records place the greatest wind strength and highest primary productivity within the time frame of 18 to 22 kyr B.P. Diagenetic effects limit our ability to ascertain directly from the biomarker records the absolute magnitude that different types of primary productivity have changed at this ocean location over the past 26 kyr.
description: Supplement to: Prahl, Frederick G; Muehlhausen, Laurel A; Lyle, Mitchell W (1989): An organic Geochemical Assessment of Oceanographic conditions at manop site C over the Past 26,000 Years. Paleoceanography, 4(5), 495-510
DOI: 10.5517/ccdc.csd.cc2ks4q7
title: CCDC 2376699: Experimental Crystal Structure Determination

description: Related Article: Séverine Renaudineau, Lise-Marie Chamoreau, Aurélie Bernard, René Thouvenot, Anna Proust, Pierre Gouzerh|2025|Inorg.Chem.|64|4862|doi:10.1021/acs.inorgchem.4c04695
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.1594/pangaea.885338
title: Ladderane in sediment core PASOM_10
DOI: 10.1594/pangaea.55433
title: Pigments, TOC of Site ARA-4/97-B1
DOI: 10.1594/pangaea.896637
title: Organic carbon content and biomarkers of sediment cores from ODP Site 151-907 and 162-907
DOI: 10.1594/pangaea.906098
title: Biomarker and temperature and sea ice proxy data for TEX86 calibration in sediment core B997-316

description: Holocene paleoceanographic reconstructions along the North Iceland Shelf have employed a variety of sea surface temperature and sea ice proxies. However, these surface proxies tend to have a seasonal bias toward spring/summer and thus only provide a discrete snapshot of surface conditions during one season. Furthermore, sea surface temperature proxies can be influenced by additional confounding variables resulting in markedly different Holocene temperature reconstructions. Here, we expand Iceland's marine paleoclimate toolkit with TEX86 L: a temperature proxy based on the distribution of archaeal glycerol dibiphytanyl glycerol tetraether (GDGT) lipids. We develop a local Icelandic calibration from 21 surface sediment samples covering a wide environmental gradient across Iceland's insular shelves. Locally calibrated GDGT results demonstrate that (1) TEX86 L reflects winter subsurface (0-200 m) temperatures on the North Iceland Shelf and (2) our calibration produces more realistic temperature estimates with substantially lower uncertainty (S.E. ±4 °C) over global calibrations. We then apply this new calibration to a high‐resolution marine sediment core (last millennium) collected from the central NIS with age control constrained by 14C‐dated mollusks. To test the veracity of the GDGT subsurface temperatures, we analyze quartz and calcite wt% and a series of highly branched isoprenoid alkenes, including the sea ice biomarker IP25, from the same core. The sediment records demonstrate that the development of thick sea ice during the Little Ice Age warmed the subsurface due to winter insulation. Importantly, this observation reflects a seasonal component of the sea ice/ocean feedback to be considered for the nonlinear cooling of the Little Ice Age in and around Iceland.
description: Supplement to: Harning, David J; Andrews, John T; Belt, Simon T; Cabedo-Sanz, Patricia; Geirsdóttir, Áslaug; Dildar, Nadia; Miller, Gifford H; Sepúlveda, Julio (2019): Sea Ice Control on Winter Subsurface Temperatures of the North Iceland Shelf During the Little Ice Age: A TEX86 Calibration Case Study. Paleoceanography and Paleoclimatology, 34(6), 1006-1021
DOI: 10.1594/pangaea.143700
title: Sedimentology and analysis of organic matter in core GIK23071-3
DOI: 10.1594/pangaea.834396
title: (Table DR2) IP25 sea-ice biomarker data derived from sediment core SO201-2-85KL
DOI: 10.1594/pangaea.779627
title: Biomarker analyses and accumulation rates of sediment core PS2641-4

description: For the calculation of the PBIP25 and PDIP25 indices mean accumulation rates of the respective biomarkers and the following concentration balance factors were used: 0.0122 for PBIP25 and 0.0464 for PDIP25.
DOI: 10.1594/pangaea.855500
title: Biomarker proxies on sediment core PS87/090-1

description: #-999 = trace amounts
DOI: 10.1594/pangaea.763583
title: n-fatty acids of shale partings in the Franciscan bedded cherts

description: Normal saturated fatty acid (n-fatty acid) in marine sediments from coastal and pelagic environments were analyzed. The coastal sediments contain both short-chained n-fatty acids with carbon numbers from 12 to 18 and long-chained acids from 22 to 32, whereas the pelagic sediments contain predominantly short-chained acids. The relative abundance of short-chained to long-chained n-fatty acids, expressed by the molar ratio C16/C26, can be an indicator to assess the depositional environment of sedimentary rocks. The ratio of long-chained n-fatty acids (C22–C32) to the total n-fatty acids also has the potential to discriminate sedimentary environments. The indicators based on the n-fatty acids were applied to the Franciscan bedded cherts. The result shows that the bedded cherts had deposited in continuous environments from the pelagic to the coastal. This is in harmony with the same inference based on major, trace and rare earth elements and normal paraffins.
description: Distance is the vertical distance from the basal pillow basalt.
description: Supplement to: Murayama, Masaki; Yamamoto, Koshi; Mimura, Koichi (1999): Depositional environment of sedimentary rocks inferred from normal fatty acid compositions. Sedimentary Geology, 125(1-2), 61-68
DOI: 10.1594/pangaea.855505
title: Biomarker proxies on sediment core PS87/106-1

description: #-999 = trace amounts; #1 = has been set to 1 due to the absence or nearly absence of IP25 and phytoplanktonmarker (indeterminable)
DOI: 10.1594/pangaea.855502
title: Biomarker proxies on sediment core PS87/094-1
DOI: 10.1594/pangaea.893196
title: N-alkanes from sediment core Co1305

description: n-Alkanes were identified and quantified with a gas chromatograph (GC Agilent 7890B, Agilent Technologies, USA) with flame ionization detector (FID) and capillary column of 50 m lenth (DB5 MS column, 0.2 mm i.d. and 0.33 µm film thickness by Agilent Technologies, USA).
DOI: 10.1594/pangaea.921408
title: Seasonal and spatial distributions of biofilm proxy parameters across an intertidal area at St. Lawrence Estuary, Canada

description: The biofilm influence on sediment stabilization was determined by quantifying pigment contents (Chlorophyll a and Phaeopigments) and extra polymeric substances (EPSSaline, EPSEDTA) in surface sediment at Nazareth tidal flat and marsh located west of Rimouski on the southern shore of Lower St. Lawrence Estuary (Canada). Small sediment cores (n=3) were taken using 60 ml syringes (36 mm ϕ) and preserved in liquid nitrogen until further processing. The cores were sectioned on a cryo-macrotome (Leica CM3600 XP) in 1 mm slices down to 3 mm. Multiple field campaigns were conducted at three cross shore transects (A, B, C) in summer 2016 (8, 9, 10 August), summer 2017 (23, 24, 25 August), with subsequent campaigns at B Transect in autumn 2017 (22, 25 November), winter 2018 (16, 20 February), spring 2018 (30 May), and summer 2018 (6 September). The data presented here does not contain the summer field campaigns, which was published in the context of annual variations in sediment biostabilization (Waqas et al., 2019, https://doi.org/10.1594/PANGAEA.911765).
DOI: 10.1594/pangaea.143707
title: Sedimentology and analysis of organic matter in core PS1911-2
DOI: 10.1594/pangaea.854056
title: Surface sediment analysis from METEOR cruise M48/2 in the Benguela Upwelling System off Namibia in August 2000
DOI: 10.1594/pangaea.854182
title: Surface Sediments analysis from Meteor Cruise M103/1 in the Benguela Upwelling System off Namibia in December 2013 and January 2014
DOI: 10.1594/pangaea.885106
title: Geochemical biomarker analyses on sediment core MSM05/3_343310-5-1
DOI: 10.1594/pangaea.143705
title: Sedimentology and analysis of organic matter in core PS1906-2
DOI: 10.1594/pangaea.89473
title: Planktic foraminifera and paleoclimate temperature and salinity calculations from sediment core M44/1 GeoTü KL71

description: Age is given in calendar years. The coefficient c in salinity change relates salinity and d18O seawater. To bracket possible past relationships between salinity and d18O seawater we used two ratios (0.25 per mil/p.s.u. and 0.45 per mil/p.s.u.).
DOI: 10.1594/pangaea.819959
title: Swath sonar multibeam EM120 bathymetry during METEOR cruise M72/1 with links to raw data files

description: Data acquisition was performed using a multibeam sonar system Simrad EM-120 from Kongsberg. Raw data are delivered within Simrad current multibeam vendor format.Raw multibeam sonar data, format SIMRAD EM-120 (RAW), packed with ZIP. SIMRAD raw data can be processed i.e. with the software packages CARIS HIPS/SIPS, Caraibes or with the open source software package MB-System (http://www.ldeo.columbia.edu/res/pi/MB-System/).
DOI: 10.1594/pangaea.107731
title: Organic geochemistry of sediment core PS2123-3
DOI: 10.1594/pangaea.58385
title: Biogeochemical parameters measured on sediment profile of multicorer SO118_MC-42
DOI: 10.1594/pangaea.875228
title: Absolute concentrations of coccolithophores in sediment core GeoB12613-1 from the western Indian Ocean (off Tanzania)
DOI: 10.1594/pangaea.921533
title: Community composition
DOI: 10.1594/pangaea.58391
title: Biogeochemical parameters measured on sediment traps
DOI: 10.1594/pangaea.58387
title: Biogeochemical parameters measured on sediment profile of multicorer M33/1_MC-19
DOI: 10.1594/pangaea.57089
title: Abundance of nanoplankton in sediment core GeoB1028-5
DOI: 10.1594/pangaea.855498
title: Biomarker proxies on sediment core PS87/087-1

description: #-999 = trace amounts
DOI: 10.1594/pangaea.143703
title: Sedimentology and analysis of organic matter in core GIK23352-2
DOI: 10.1594/pangaea.143695
title: Sedimentology and analysis of organic matter in core GIK17728-1
DOI: 10.1594/pangaea.881635
title: (Table A.1) Locations, satellite-derived spring sea ice concentrations (SpSIC; April-June, 1988-2007) and absolute HBI biomarker concentrations of surface sediments in the Barents Sea
DOI: 10.1594/pangaea.137008
title: Long chain n-alkanes in surface sediments
DOI: 10.1594/pangaea.892845
title: Sediment characteristics at the air-sea interface of Red Sea mangrove forests
DOI: 10.1594/pangaea.779625
title: Biomarker analyses and accumulation rates of sediment core MSM05/5_712-2

description: For the calculation of the PBIP25 and PDIP25 indices mean accumulation rates of the respective biomarkers and the following concentration balance factors were used: 0.0089 for PBIP25 and 0.0278 for PDIP25.
DOI: 10.1594/pangaea.809111
title: Microphytobenthos composition in Heron Reef, Australia, by High Performance Liquid Chromatography (HPLC) (July 2012)

description: We quantified pigment biomarkers by high performance liquid chromatography (HPLC) to obtain a broad taxonomic classification of microphytobenthos (MPB) (i.e. identification of dominant taxa). Three replicate sediment cores were collected at 0, 50 and 100 m along transects 5-9 in Heron Reef lagoon (n=15) (Fig. 1). Transects 1-4 could not be processed because the means to have the samples analysed by HPLC were not available at the time of field data collection. Cores were stored frozen and scrapes taken from the top of each one and placed in cryovials immersed in dry ice. Samples were sent to the laboratory (CSIRO Marine and Atmospheric Research, Hobart, Australia) where pigments were extracted with 100% acetone during fifteen hours at 4°C after vortex mixing (30 seconds) and sonication (15 minutes). Samples were then centrifuged and filtered prior to the analysis of pigment composition with a Waters - Alliance HPLC system equipped with a photo-diode array detector. Pigments were separated using a Zorbax Eclipse XDB-C8 stainless steel 150 mm x 4.6 mm ID column with 3.5 µm particle size (Agilent Technologies) and a binary gradient system with an elevated column temperature following a modified version of the Van Heukelem and Thomas (2001) method. The separated pigments were detected at 436 nm and identified against standard spectra using Waters Empower software. Standards for HPLC system calibration were obtained from Sigma (USA) and DHI (Denmark).
description: Supplement to: Borrego-Acevedo, Rodney; Roelfsema, Christiaan M; Phinn, Stuart R; Grinham, Alistair (2014): Predicting distribution of microphytobenthos abundance on a reef platform by combining in-situ underwater spectrometry and pigment analysis. Limnology and Oceanography, 5(5), 461-470
DOI: 10.1594/pangaea.922398
title: Sea-ice biomarkers, benthic and planktonic foraminiferal geochemistry, and benthic foraminiferal assemblage data from IODP Site U1343 between ~7 ka and 40 ka

description: The dataset compiles sea-ice biomarkers (IP25, HBI II, HBI III, Triene E, Brassicasterol, Campesterol, Cholesterol, β- sitosterol) together with benthic and planktonic foraminiferal geochemistry (U/Ca, Mn/Ca, U/Mn, Mg/Ca) and benthic foraminiferal assemblage counts from Integrated Ocean Drilling Program Site U1343 in the eastern Bering Sea. The dataset covers the time range from 7.6-42 ka.
DOI: 10.1594/pangaea.906090
title: Organic geochemistry of sediment cores 9R and 10R at site PS104_20-2
DOI: 10.1594/pangaea.816767
title: Biochemistry measured on water bottle samples during Fogo Isle cruise FL92/3
DOI: 10.1594/pangaea.911429
title: Sea-ice biomarkers, benthic and planktonic foraminiferal geochemistry, and benthic foraminiferal assemblage data from IODP Site U1343 between ~7 ka and 40 ka

description: The dataset compiles sea-ice biomarkers (IP25, HBI II, HBI III, Triene E, Brassicasterol, Campesterol, Cholesterol, β- sitosterol) together with benthic and planktonic foraminiferal geochemistry (U/Ca, Mn/Ca, U/Mn, Mg/Ca) and benthic foraminiferal assemblage counts from Integrated Ocean Drilling Program Site U1343 in the eastern Bering Sea. The dataset covers the time range from 7.6-42 ka.
description: **** Old version, please refer to the new version (see "Replaced by" reference) ****
DOI: 10.1594/pangaea.927024
title: Organic and inorganic geochemistry of surface sediments sampled during RV POLARSTERN cruise PS97
DOI: 10.1594/pangaea.816765
title: Biochemistry measured on water bottle samples during Fogo Isle cruise FL92/1
DOI: 10.1594/pangaea.816768
title: Biochemistry measured on water bottle samples during Fogo Isle cruise FL93/1
DOI: 10.1594/pangaea.816770
title: Biochemistry measured on water bottle samples during Sir W. Laurier cruise LU94/1
DOI: 10.1594/pangaea.767382
title: (Table 2) Contents of chlorophyll a, organic carbon, nitrogen, and phosphorus and their molar ratios in dried matter of Ahnfeltia tobuchiensis agar containing seaweed from the Izmena Bay, Kunashir Island (South Kurils)

description: A complex study of influence of various environmental factors on rates of oxygen (M_O2 ), ammonium (M_NH4), and phosphate (M_PO4) metabolism in Ahnfeltia tobuchiensis has been carried out in situ in the Izmena Bay of the Kunashir Island. The following environmental factors have been included into the investigation: photosynthetically active radiation (PAR); ammonium (NH4); phosphate (PO4); and contents of carbon (C), nitrogen (N), phosphorus (P), and chlorophyll a (Chl) in tissue. Population of agar-containing seaweed A. tobuchiensis forms a layer with thickness up to 0.5 m, which occupies about 23.3 km**2; biomass is equal to 125000 tons. Quantitative assessment of organic matter production and nutrient consumption during oxygen metabolism has been carried out for the whole population. It has been shown that daily oxygen metabolism depends on PAR intensity, concentrations of PO4 and NH4 in seawater, and contents of N and P in tissues (r**2=0.78, p&lt;0.001). Average daily NH4 consumption is 0.21 µmol/g of dry weight/hour and depends on NH4 and O2 concentrations in seawater and on ? and Chl a contents in algal tissues (r**2=0.64, p&lt;0.001). Average daily PO4 consumption is 0.01 µmol/g of dry weight/hour and depends on NH4 concentrations in seawater and on P contents in algal tissues (r**2=0.40, p&lt;0.001).
description: Supplement to: Cherbadgy, I I; Sabitova, L I (2011): Influence of the environmental factors on the intensity of the oxygen, ammonium, and phosphate metabolism in the agar-containing seaweed Ahnfeltia tobuchiensis (Ahnfeltiales, Rhodophyta). Translated from Okeanologiya, 2011, 51(1), 54-64, Oceanology, 51(1), 49-59
DOI: 10.1594/pangaea.921695
title: Hemispherical-directional reflectance factor (HDRF) of snow surfaces retrieved from airborne camera measurements in Antarctica during austral summer in 2013/14 (flight ANT_1312272702)

description: Missing data: -9.0
DOI: 10.1594/pangaea.753496
title: (Table 10) Hydrogen index of bulk samples of ODP Leg 112
DOI: 10.1594/pangaea.921705
title: Hemispherical-directional reflectance factor (HDRF) of snow surfaces retrieved from airborne camera measurements in Antarctica during austral summer in 2013/14 (flight ANT_1401043902)

description: Missing data: -9.0
DOI: 10.1594/pangaea.777525
title: Concentration of pollen in soil samples from the A.D. 79 level at station Boscoreale
DOI: 10.1594/pangaea.777526
title: Concentration of pollen in soil samples from the A.D. 79 level at station Oplontis
DOI: 10.1594/pangaea.887829
title: IP25 and Uk'37 proxy record of sediment core SO202/1_18-6
DOI: 10.1594/pangaea.884797
title: IP25 biomarker in sediment core PS93/006-1
DOI: 10.1594/pangaea.884798
title: Sterols in sediment core PS93/006-1
DOI: 10.1594/pangaea.909058
title: Mercury and organic geochemistry of Manilva quarry
DOI: 10.1594/pangaea.909055
title: Mercury and organic geochemistry of El Chorro quarry
DOI: 10.1594/pangaea.909056
title: Mercury and organic geochemistry of Furlo quarry
DOI: 10.1594/pangaea.422531
title: Pigments of sediment core IOW211670-4

description: Knauer, Germany, with UV-Vis diode-array detector (Barspec Chrom-A-Scope) and fluorescence (Shimadzu RF-551) detector
DOI: 10.1594/pangaea.753087
title: (Table 2) Carbon chemistry of ODP Hole 111-677A and 111-678B samples
DOI: 10.1594/pangaea.780373
title: (Table 3-1) Rates of carbon dioxide assimilation, methane formation, and methane oxidation in bottom sediments of Poligon III near the Congo River mouth
DOI: 10.1594/pangaea.56130
title: Analysis of organic matter in ODP Site 108-663
DOI: 10.1594/pangaea.922214
title: Palynological abundance data from sediments at Hampden Beach, New Zealand
DOI: 10.1594/pangaea.708687
title: (Table 3) Concentrations (in dry sediments) of bound alkenones, fatty acids, and alcohols in oxidized and unoxidized turbidites from ODP Hole 157-951B
DOI: 10.1594/pangaea.819309
title: (Table 1) C1 - C8 volatile compounds in sediments from DSDP Leg 63 Holes

description: Low-temperature diagenetic reactions (less than 50°C) are held responsible for the generation of small amounts of C1-C8 hydrocarbons (less than 100 ng hydrocarbon/g dry weight of sediment) at outer continental shelf Deep Sea Drilling Project Sites 468 and 469 (sub-bottom depths 415 m and 454 m, respectively). In contrast, Site 471 shows an exponential rise in hydrocarbon yields at depths greater than 500 meters. The high yields of C4-C8 hydrocarbons (up to 30 ng hydrocarbon/g dry weight of sediment) in this area of high geothermal and volcanic activity suggest the penetration of an active petroleum-generating zone. Similar arguments apply to Site 467, where relatively high levels (up to 3 µg hydrocarbon/g dry weight sediment) occurred in very shallow (250-600 m) sediments.
description: Sediment depth is given in mbsf. Empty cells = not determined.
description: Supplement to: Whelan, Jean K; Hunt, John M (1981): C1-C8 hydrocarbons in IPOD Leg 63 sediments from outer California and Baja California borderlands. In: Yeats, RS; Haq, BU; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 63, 775-784
DOI: 10.1594/pangaea.726450
title: (Table 5) Organic carbon analysis of sediments from ODP Site 113-696
DOI: 10.1594/pangaea.779773
title: (Table T1) Carbon contents, alkenone concentrations, alkenone unsaturation index, and SST in sediments of ODP Leg 190 sites

description: We have preliminarily generated the downcore records of total organic carbon (TOC) content, total alkenone concentration, alkenone unsaturation index, and the estimated sea-surface temperature (SST) in the northern three sites (Sites 1175, 1176, and 1178) of the Muroto Transect, Nankai Trough. The TOC content will be used for the evaluation of the burial of organic matter, which plays a role in the generation of natural gas and the formation of gas hydrate in this region. The downcore records of alkenone SST will benefit studies for the paleoceanography of the northwestern Pacific. Because those sites are located in the main path of the Kuroshio Current, the records provide the temperature change of the Kuroshio water, which is an end-member water mass in the northwestern Pacific.
description: Supplement to: Yamamoto, Masanobu (2004): Data report: Organic carbon and alkenone sea-surface temperature from Sites 1175, 1176, and 1178, Nankai Trough. In: Mikada, H; Moore, GF; Taira, A; Becker, K; Moore, JC; Klaus, A (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 190/196, 1-10
DOI: 10.1594/pangaea.726449
title: (Table 5) Organic carbon analysis of sediments from ODP Site 113-693
DOI: 10.1594/pangaea.733242
title: A multi-proxy investigation of sediment core GeoB7165-1 ~60 km offshore Concepción
DOI: 10.1594/pangaea.746797
title: (Table 3a) Methane concentrations, its oxidation rate, Eh, and organic carbon contents in bottom sediments of the Kara Sea at Station DM49-4404-1b
DOI: 10.1594/pangaea.809291
title: (Appendix A) Carbon analyses and Rock-Eval geochemistry at DSDP Leg 77 Holes

description: Sediment depth is given in mbsf. Carbon analyses by Huffman Laboratories; Rock-Eval data from G. E. Claypool, U.S.G.S.
DOI: 10.1594/pangaea.779648
title: (Table 3) Carbon chemistry of rocks from the Kirchrode I borehole
DOI: 10.1594/pangaea.779795
title: (Table T2) Total fatty acid, H/L FA and total hopanoic acid concentrations of ODP Site 190-1178
DOI: 10.1594/pangaea.818765
title: (Table 1) C1-C8 volatile compounds in DSDP Leg 64 Holes

description: Sediment depth is given in mbsf. &lt;0.01 = trace; # = about; empty cells = not determined.
DOI: 10.1594/pangaea.838201
title: Pollen profile TS, Russia

description: This dataset was archived on 2014-11-03 from the EPD database (http://www.europeanpollendatabase.net).