cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.828778
title: Fossilization and degradation of archaeal intact polar tetraether lipids in ODP Site 201-1229 sediments

description: Glycerol dibiphytanyl glycerol tetraether (GDGT) lipids are part of the cellular membranes of Thaumarchaeota, an archaeal phylum composed of aerobic ammonia oxidizers, and are used in the paleotemperature proxy TEX86. GDGTs in live cells possess polar head groups and are called intact polar lipids (IPL-GDGTs). Their transformation to core lipids (CL) by cleavage of the head group was assumed to proceed rapidly after cell death but it has been suggested that some of these IPL-GDGTs can, just like the CL-GDGTs, be preserved over geological timescales. Here, we examined IPL-GDGTs in deeply buried (0.2-186 mbsf, ~2.5 Myr) sediments from the Peru Margin. Direct measurements of the most abundant IPL-GDGT, IPL-crenarchaeol, specific for Thaumarchaeota, revealed depth profiles which differed per head group. Shallow sediments (&lt;1 mbsf) contained IPL-crenarchaeol with both glycosidic- and phosphate headgroups, as also observed in thaumarchaeal enrichment cultures, marine suspended particulate matter and marine surface sediments. However, hexose, phosphohexose-crenarchaeol is not detected anymore below 6 mbsf (~7 kyr), suggesting a high lability. In contrast, IPL-crenarchaeol with glycosidic head groups is preserved over time scales of Myr. This agrees with previous analyses of deeply buried (&gt;1 m) marine sediments, which only reported glycosidic and no phosphate-containing IPL-GDGTs. TEX86 values of CL-GDGTs did not markedly change with depth, and the TEX86 of IPL-derived GDGTs decreased only when the proportions of monohexose- to dihexose-GDGTs changed, likely due to the enhanced preservation of the monohexose GDGTs. Our results support the hypothesis that in situ GDGT production and differential IPL degradation in sediments is not substantially affecting TEX86 paleotemperature estimations based on CL GDGTs and indicate that likely only a small amount of IPL-GDGTs present in deeply buried sediments is part of cell membranes of active Archaea. The amount of archaeal biomass in the deep biosphere based on these IPLs may have been substantially overestimated.
description: DEPTH, sediment/rock [m] is given in mbsf. All concentrations are given vs. sediment dry weight.
description: Supplement to: Lengger, Sabine K; Hopmans, Ellen C; Sinninghe Damsté, Jaap S; Schouten, Stefan (2014): Fossilization and degradation of archaeal intact polar tetraether lipids in deeply buried marine sediments (Peru Margin). Geobiology, 12(3), 212-220
DOI: 10.1594/pangaea.833710
title: Predicting changes in abundance and juvenile proportions of earthworms in the field using glmmADMB in R

description: The study aimed at investigating effects of three differently acting biocides; the insecticide esfenvalerate, the fungicide picoxystrobin and the bactericide triclosan, applied individually and as a mixture, on an earthworm community in the field. A concentration-response design was chosen and results were analyzed using univariate and multivariate approaches. Effects on juvenile proportions were less pronounced and more variable than effects on abundance, but effects in general were species- and chemical-specific, and temporal variations distinct. Esfenvalerate and picoxystrobin appeared to elicit stronger effects than triclosan at laboratory-based ECx values, which is in accordance with our previous laboratory study on Eisenia fetida. The mixture affected abundance and juvenile proportions, but the latter only at high mixture concentrations. Esfenvalerate and picoxystrobin appeared to be the main drivers for the mixture's toxicity. Species-specific toxicity patterns question the reliability of mixture toxicity predictions derived on E. fetida for field earthworms. Biocide concentrations equaling EC50s (reproduction) for E. fetida provoked effects on the field earthworms mainly exceeding 50%, indicating effect intensification from the laboratory to field as well as the influence of indirect effects produced by species interactions. The differing results of the present field study and the previous laboratory study imply that lower- and higher-tier studies may not be mutually exclusive, but to be used in complementary.
description: The R-script was used to predict changes in earthworm abundance and juvenile-to-adult ratios in an agricultural field in Norway (N 59° 65' E 10° 75') over two consecutive years (2010 and 2011). The test plots of the field were treated with three biocides, i.e. esfenvalerate, picoxystrobin and triclosan, and a mixture of these at various concentrations. All treatments have been shown to be toxic to Eisenia fetida in the laboratory.
description: Supplement to: Schnug, Lisbeth; Ergon, Torbjørn; Jakob, Lena; Scott-Fordsmand, Janeck J; Joner, Erik J; Leinaas, Hans Petter (2015): Responses of earthworms to repeated exposure to three biocides applied singly and as a mixture in an agricultural field. Science of the Total Environment, 505, 223-235
DOI: 10.1594/pangaea.477296
title: Hydrochemistry measured on water bottle samples at station NPac_1985_TT_47Na/38-1

description: This data sets is part of a compilation by James Swift for the Java OceanAtlas software. Data are from various pre-WOCE sources, mainly with contributions and quality control from Joseph Reid (SIO) and NODC.
DOI: 10.1594/pangaea.829778
title: Susceptibility measurements at Gubbio sections

description: The complex interplay between extraterrestrial events and earth-bound processes that triggered one of the greatest biological crises of the Phanerozoic requires a high resolution timescale. Detailed magnetic susceptibility measurements at the Contessa Highway and Bottaccione sections (Italy) span the Cretaceous-Paleogene boundary and reveal clear orbital signatures in the sedimentary record. Identification of precession and 405 kyr eccentricity cycles allows an estimate of 324+/-40 kyr for the duration of the Maastrichtian part of Chron C29r. We present in the same high resolution time frame sites in Spain and the North and South Atlantic and bio-horizons, biotic changes, stable isotopic excursions and the decrease in Osmium isotopes recorded in these sections. The onset of 187 Os/ 188 Os decrease coincides with the d13 C negative excursion K-PgE1, thus suggesting a first pulse in Deccan volcanism at 66.64 Ma. The K-PgE3 d13 C negative excursion is possibly the expression of a second pulse at 66.26 Ma. Late Maastrichtian d13 C negative excursions are of low intensity and span durations of one to two eccentricity cycles, whereas early Danian excursions are brief (about 30 kyr) and acute. In Biotic response to late Maastrichtian perturbations occurred with a delay of ca. 200 kyr after the beginning of K-PgE1 shortly before K-PgE3. The biotic perturbation could be thus either a delayed response to K-PgE1, or a direct response to K-PgE3, and possibly, a threshold response to the stepwise buildup of CO2 atmospheric injections. No delay is evident in response to early Danian hyperthermal events. These differences suggest that short-lived, volcanically-derived environmental perturbations were buffered within the stable late Maastrichtian oceanic realm whereas they were amplified by the more sensitive and highly disturbed early Danian oceanic ecosystem.
description: Magnetic susceptibility measured on samples from the Contessa (43° 22' 45'' N 13° 33' 42'' E) and Bottaccione (43° 21' 57'' N 12° 34' 57'' E) sections (Gubbio, Italy). The signal corresponds to the magnetochron C29r, extending on both sides of the K-Pg boundary. The Contessa section covers C29r Paleogene part, the Bottaccione section covers C29r Maastrichtian part.Depth [m] means the stratigraphical position of the sample in the composite section (m).
description: Supplement to: Husson, Dorothée; Galbrun, Bruno; Gardin, Silvia; Thibault, Nicolas (2014): Tempo and duration of short-term environmental perturbations across the Cretaceous-Paleogene boundary. Stratigraphy, 11(2), 159-171
DOI: 10.1594/pangaea.706572
title: (Appendix 1) Biostratigraphy and Sr isotopic composition of sediments from DSDP Hole 22-216
DOI: 10.1594/pangaea.833722
title: Supplementary table 4: Stable isotope data and relative temperature changes of Nuttallides truempy from DSDP Site 48-401
DOI: 10.1594/pangaea.752353
title: Meteorological observations during STRAALEN cruise started at 1786-09-17
DOI: 10.1594/pangaea.809203
title: Sulphate reduction rates of Amon mud volcano sediments measured at station MSM13/3_929-1_PUC9
DOI: 10.1594/pangaea.670238
title: Basic and other measurements of radiation at Neumayer Station (1998-06)
DOI: 10.1594/pangaea.753010
title: Meteorological observations during BRAK cruise from Antigua to Curaçao started at 1783-02-15
DOI: 10.1594/pangaea.860238
title: Annotated record of the detailed examination of Mn deposits from R.R.S. "Discovery" Cruise 11 stations

description: During Discovery Cruise 11, April-May 1966, eleven hauls were made on the crest and on the southern facing slope of Palmer Ridge in the Peake Deep area in order to fill out the information gained last year. Limestones were collected ranging in age from lowest Eocene through to Upper Tertiary, and several hauls successfully sampled the basement beneath these, producing weathered basalts, metamorphosed basalts and dolerites. In Peake Deep on the north slope of Palmer Ridge hard Eocene sediments were core sampled near the base of the slope but no cores could be got near the top.
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: National Institute of Oceanography, Wormley (1966): Discovery Cruise 11 Report, April-May 1966, Geology and geophysics in the N.E. Atlantic. National Institute of Oceanography, Wormley, Godalming, Surrey (hdl:10013/epic.47825.d003 pdf 634 kB), 16 pp
DOI: 10.1594/pangaea.719642
title: Other measurements at 10 m from station Desert Rock (2004-02)
DOI: 10.1594/pangaea.729772
title: (Table 1) Analysis of trapped gas from the Vostock Ice Core
DOI: 10.1594/pangaea.536363
title: Standing stock and delta 13C of Melonis barleeanum of sediment core GeoB3725-1
DOI: 10.1594/pangaea.788554
title: Magnetostratigraphy of DSDP Leg 94 sediments

description: The primary objective of DSDP Leg 94 was to obtain continuous paleoclimatic records along a roughly north-south transect in the North Atlantic. The magnetostratigraphy of 21 holes at 6 sites cored with the hydraulic piston corer and extended-core-barrel corer is presented here and establishes an independent chronology for these sediments. Nearly complete records were obtained for the last 2.5 m.y.; in addition, deeper drilling at three sites to satisfy tectonic and paleoceanographic objectives produced older sections suitable for magnetostratigraphic study, allowing first-order correlations of the polarity sequences with calcareous and siliceous micro fossil events.The sections with high sediment accumulation rates yielded very detailed records of polarity history and allowed three short normal-polarity zones within the Matuyama Chronozone to be detected, in addition to the Jaramillo and Olduvai subchronozones. A short reversed-polarity zone also occurs, within the upper intervals of the Gauss Chronozone. These short zones are present in multiple holes, ruling out the possibility that they might be of local origin. Correlation of these short zones with radiometrically dated polarity zones in igneous rocks strongly supports the interpretation of these polarity zones as records of true geomagnetic polarity chrons.
description: Supplement to: Clement, Bradford M; Robinson, Frank (1987): The magnetostratigraphy of Leg 94 sediments. In: Ruddiman, WF; Kidd, RB; Thomas, E; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 94, 635-650
DOI: 10.1594/pangaea.829023
title: Reflectance spectroscopy and colorimetry from IODP Hole 339-U1391B

description: Geocode = Depth CSF-A (m)
DOI: 10.1594/pangaea.752965
title: Meteorological observations during ZANGGODIN cruise from Suriname to the Netherlands started at 1772-01-25
DOI: 10.1594/pangaea.913946
title: Meteorological synoptical observations from station Sonnblick (2020-01)
DOI: 10.1594/pangaea.872263
title: Links to master tracks in different resolutions from POLAR 5 flight CryoVEx_ANT_2010_11
DOI: 10.1594/pangaea.843747
title: Age model, benthic δ¹³C and δ¹⁸O and Ca/Fe ratios of sediment core GeoB3808-6
DOI: 10.1594/pangaea.670225
title: Basic and other measurements of radiation at Neumayer Station (1997-04)
DOI: 10.1594/pangaea.498059
title: Physical oceanography from BT during cruise U58XX00040B_1959
DOI: 10.1594/pangaea.752175
title: Meteorological observations during SPHYNX cruise from Bahia to False Bay started at 1795-09-09
DOI: 10.1594/pangaea.726252
title: (Table 2) Stable carbon and oxygen isotope ratios of Planulina wuellerstorfi from sediment core CHN115-91PC
DOI: 10.1594/pangaea.728254
title: (Table 2) Diatom abundance and nannofossil and diatom zonation of ODP Site 115-706
DOI: 10.1594/pangaea.758186
title: (Table 1) Oxygen and carbon isotope ratios of benthic foraminifera from ODP Hole 119-744B
DOI: 10.1594/pangaea.758187
title: (Table 2) Oxygen and carbon isotope ratios of foraminifera from ODP Hole 119-744A
DOI: 10.1594/pangaea.751951
title: Meteorological observations during Santa María de la Caveza cruise from Cádiz to Estrecho de Magallanes started at 1785-10-06
DOI: 10.1594/pangaea.845205
title: Station list and links to master tracks in different resolutions of HEINCKE cruise HE304, Bremerhaven - Bremerhaven, 2009-05-27 - 2009-06-02
DOI: 10.1594/pangaea.718951
title: (Appendix 1) Oxygen and carbon isotopic composition in foraminifera from DSDP Hole 29-277 sediments
DOI: 10.1594/pangaea.741956
title: Isotope and water temperature measurements of the Atlantic Ocean from ODP Site 172-1056

description: We use planktonic foraminiferal (Globigerinoides sacculifer and Neogloboquadrina dutertrei) d18O records from subtropical North Atlantic Site 1056 to reconstruct millennial-scale changes in sea surface hydrography during marine isotope stages (MIS) 10 through 12 (340-440 ka). The difference in the d18O records provides a measure of the thermal gradient from the mixed layer to the seasonal thermocline (delta Tml-tc), which we use to constrain upper ocean stratification and infer northward ocean heat transport. Late Holocene G. sacculifer and N. dutertrei d18O values place controls on how the foraminifera record recent ocean conditions at Site 1056. In the down core record we find extreme excursions toward G. sacculifer d18O maxima and delta Tml-tc minima throughout the entire time interval. These cold events have a similar amplitude throughout but are more frequent during the glacial than the interglacial intervals. During interglacial MIS 11 the excursions provide evidence for repeated cooling of the sea surface contributing to existing evidence for relative climate instability during interglacial intervals. During MIS 10, millennial-scale variability in the subtropical record is very similar to that observed in the subpolar North Atlantic at Site 980, perhaps related to a common forcing such as a large Northern Hemisphere ice sheet. Within the limitation of the age models the cold events of MIS 11 are almost synchronous with benthic foraminiferal d13C minima at subtropical North Atlantic Site 1063, which suggests a general surface to deep ocean link via thermohaline circulation during this interval of time.
description: Supplement to: Billups, Katharina; Chaisson, William P; Worsnopp, M; Thunell, Robert C (2004): Millennial-scale fluctuations in subtropical northwestern Atlantic surface ocean hydrography during the mid-Pleistocene. Paleoceanography, 19(2), PA2017
DOI: 10.1594/pangaea.756808
title: (Table 1) Reproducibility of duplicate samples for oxygen isotope values of planktonic foraminifera from ODP Hole 117-728A
DOI: 10.1594/pangaea.703198
title: (Table 2) Stable oxygen isotope ratios of Globigerinoides ruber and paleotemperature reconstruction of ODP Site 133-811 in the western Coral Sea off northeast Australia
DOI: 10.1594/pangaea.712714
title: (Table 2) Grain size composition of sediment core POS158/1_0017/2
DOI: 10.1594/pangaea.787742
title: (Appendix A) Stable isotopes, carbonate, size fraction and sedimentation rate from ODP Holes 113-689B and 113-690B
DOI: 10.1594/pangaea.895462
title: Stable isotope record of Gephyrocapsa coccoliths of sediment core KX21-2

description: Coccolithophores play important roles in marine biochemistry due to the processes of calcification and photosynthesis. Coccoliths are produced intracellularly, and cells produce coccoliths with stable isotopes distinct from theoretically precipitated inorganic calcite due to the influences of coccolithophore physiology, which are the so-called vital effects. The coccolith isotopic vital effects show large variations between species and hamper the use of coccolith isotopes in paleoceanography. In addition, learning the coccolith isotopic vital effects can help to better understand the carbon fractionation in coccolithophore cell, so as to provide a new insight in reconstructing sea water carbonate system (e.g., from alkenone C or directly from coccolith C) in geological past. In the present study, we investigated the morphological parameters, growth rate, and coccolith stable isotope compositions of Gephyrocapsa, the most universal alkenone-producing coccolithophore across the Pleistocene. These data allow us to estimate the influences of Gephyrocapsa morphology as well as the growth rate on coccolith vital effects. The results showed that Gephyrocapsa morphology, as well as coccolith isotopes, varied with species and morphotype changes, which were evolutionarily forced over the past 400 ka. The small Gephyrocapsa morphotypes (G. caribbeanica and Gephyrocapsa &lt;3 μm) produced more robust coccoliths with relatively heavier isotopes for both carbon and oxygen than that of the larger-sized G. oceanica. The carbon and oxygen vital effects were significantly correlated and showed negative values, suggesting a kinetic effect on bicarbonate formation during calcification. The Gephyrocapsa growth rate showed a glacial–interglacial cyclicality, and had close relations with coccolith isotopic vital effects before MIS 8 when G. oceanica dominated. It is suggested that coccolith isotopic fractionation were influenced by coccolithophore growth rate, however these effects were superimposed on an evolutionary forced coccolithophore (coccolith) size changes.
description: Supplement to: Jin, Xiaobo; Liu, Chuanlian; Zhang, Hongrui; Zhou, Chao; Jiang, Xiaoying; Wu, Zhouyang; Xu, Juan (2018): Evolutionary driven of Gephyrocapsa coccolith isotopic vital effects over the past 400 ka. Earth and Planetary Science Letters, 503, 236-247
DOI: 10.1594/pangaea.760326
title: (Table 2) Stable carbon and oxygen isotope record of benthic foraminifera fromf ODP Hole 120-751A

description: Sediment depth is given in mbsf. No adjustments have been applied and no outliers are excluded.
DOI: 10.1594/pangaea.719248
title: Other measurements at 10 m from station Bondville (1996-04)

description: Version 2, 2009-06-15
DOI: 10.1594/pangaea.787539
title: (Table 3) Analyses of plagioclase phenocrysts and groundmass grains from ODP Hole 134-831B lavas
DOI: 10.1594/pangaea.549204
title: Atmospheric carbon dioxide in the Atlantic Ocean of Quima cruise QUIMA20060406

description: Atmospheric measurements refer to a height of 45 m.a.s.l
DOI: 10.1594/pangaea.549211
title: Underway carbon dioxide in the Atlantic Ocean of Quima cruise QUIMA20050821
DOI: 10.1594/pangaea.787747
title: (Table T8) Key nannofossil biohorizons of DSDP Hole 47B-398D
DOI: 10.1594/pangaea.707195
title: (Table 2) Proposed ages of rapid δ¹³C changes at ODP Site 172-1060

description: Sediment depth (m) is composite depth (mcd)
DOI: 10.1594/pangaea.747401
title: Meteorological observations during ANNA cruise from Buenos Aires to Antwerpen started at 1845-09-19
DOI: 10.1594/pangaea.757032
title: Meteorological synoptical observations from station Sede Boqer (2010-08)
DOI: 10.1594/pangaea.696435
title: (Table 1) Stable oxygen isotope ratios of planktonic foraminifera from ODP Hole 130-805C on the Ontong Java Plateau

description: Depth is the depth below the core top. Core 130-805C-1H ODP depth 0-7.8 mbsf, 130-805C-2H ODP depth 7.8-17.3 mbsf, 130-805C-3H ODP depth 17.3-26.8 mbsf
DOI: 10.1594/pangaea.827671
title: Basic measurements of radiation at station Nauru Island (2008-01)

description: Version 2, 2014-01-24
DOI: 10.1594/pangaea.707874
title: (Table 2) Stable carbon and oxygen isotope ratios of live Uvigerina ex gr. U. semiornata from sediment core CD151_56101#7
DOI: 10.1594/pangaea.787433
title: (Table 5) Sr, Nd, and Pb isotopic compositions of some igneous rocks from ODP Holes 134-829A and 134-830B
DOI: 10.1594/pangaea.822878
title: Meteorological measurements in the upper air at station Agra, 1928-01-06 to 1936-12-05, ERA-CLIM ID 5782

description: Altitude = Height above sea-level
DOI: 10.1594/pangaea.707244
title: (Table 2) Oxygen and thorium isotope ratios, and flux data of ODP Hole 138-850A
DOI: 10.1594/pangaea.664812
title: Oceanography at CTD/bottle station IFREMER_1652
DOI: 10.1594/pangaea.664817
title: Oceanography at CTD/bottle station IFREMER_1657
DOI: 10.1594/pangaea.696436
title: (Table 3) Age model and interpolated Quaternary oxygen isotope record of ODP Hole 130-805C on the Ontong Java Plateau
DOI: 10.1594/pangaea.706126
title: (Table 2) Oxygen stable isotope values for Globigerinoides sacculifer and Pulleniatina spp. from DSDP Hole 31-292
DOI: 10.1594/pangaea.663849
title: Oceanography at CTD/bottle station IFREMER_0689
DOI: 10.1594/pangaea.664569
title: Oceanography at CTD/bottle station IFREMER_1409
DOI: 10.1594/pangaea.665057
title: Oceanography at CTD/bottle station IFREMER_1897
DOI: 10.1594/pangaea.827458
title: Solids analysis from IODP Hole 335-U1256D

description: Geocode = Top depth CSF-A (m)
DOI: 10.1594/pangaea.759095
title: (Appendix F) Composite records of mean stable isotope ratios, CaCO3, density, and coarse fraction for ODP Site 121-758

description: AGE (ka BP) is the magnetostratigraphic age.
DOI: 10.1594/pangaea.664708
title: Oceanography at CTD/bottle station IFREMER_1548
DOI: 10.1594/pangaea.719086
title: Other measurements at 10 m from station Bondville (2007-05)
DOI: 10.1594/pangaea.664528
title: Oceanography at CTD/bottle station IFREMER_1368
DOI: 10.1594/pangaea.828517
title: Natural gamma radiation from IODP Hole 323-U1340A

description: Geocode = Depth CSF-A (m)
DOI: 10.1594/pangaea.761346
title: Radiosonde measurements from station Lindenberg (2006-10)
DOI: 10.1594/pangaea.664596
title: Oceanography at CTD/bottle station IFREMER_1436
DOI: 10.1594/pangaea.664743
title: Oceanography at CTD/bottle station IFREMER_1583
DOI: 10.1594/pangaea.821199
title: (Table 2) Mineralogical and isotopic composition of alteration products in samples from DSDP Hole 59-448A

description: Sediment depth is given in mbsf. Empty cells indicate that no analysis was made; - = absent.
DOI: 10.1594/pangaea.664600
title: Oceanography at CTD/bottle station IFREMER_1440
DOI: 10.1594/pangaea.913948
title: Meteorological synoptical observations from station Sonnblick (2020-02)
DOI: 10.1594/pangaea.738300
title: Early Cenozoic benthic foraminiferal isotopes from ODP Site 114-698

description: Data include also Katz M.E. and Wright J.D. unpublished data (2000)
DOI: 10.1594/pangaea.749458
title: Meteorological observations during Gouverneur Elsevier cruise from Kust van Guinea to Pampus started at 1854-08-29