cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.708205
title: (Appendix 1) Crustal helium-4 abundance and flux data for ODP Hole 130-806B

description: The mass accumulation rates (MARs) of aeolian dust in the ocean basins provide an important record of climate in the continental source regions of atmospheric dust and of the prevailing wind patterns responsible for dust transport in the geologic past. The incorporation of other terrigenous components such as volcanic ashes in seafloor sediments, however, often obscures the aeolian dust record. We describe a new approach which uses the delivery rate of crustal 4He to seafloor sediments as a proxy for the mass accumulation rate of old continental dust which is unaffected by the addition of other terrigenous components.We have determined the flux of crustal 4He delivered to the seafloor of the Ontong Java Plateau (OJP) in the western equatorial Pacific over the last 1.9 Myrs. Crustal 4He fluxes vary between 7.7 and 30 ncc/cm**2/kyr and show excellent correlation with global climate as recorded by oxygen isotopes, with high crustal 4He fluxes associated with glacial periods over the entire interval studied. Furthermore, the onset of strong 100 kyr glacial-interglacial climate cycling is clearly seen in the 4He flux record about 700 kyrs ago. These data record variations in the supply of Asian dust in response to climate driven changes in the aridity of the Asian dust sources, consistent with earlier work on Asian dust flux to the northern Pacific Ocean. However, in contrast to previous studies of sites in the central and eastern equatorial Pacific Ocean, there is no evidence that the Inter Tropical Convergence Zone (an effective rainfall barrier to the southward transport of northern hemisphere dust across the equator in the central and eastern Pacific) has influenced the delivery of Asian dust to the OJP.The most likely carrier phase for crustal helium in these sediments is zircon, which can reasonably account for all the 4He observed in the samples. As a first order estimate, these results suggest that the mass accumulation rate of Asian dust on the OJP over the last 1.9 Myrs varied from about 4 to 15 mg/ cm**2/kyr. In contrast, previous studies show that over the same interval the total MAR of terrigenous dust (i.e. Asian dust plus local volcanics) on OJP varied between about 34 and 90 mg/ cm**2/kyr.
description: ncc = nanno cubic centimeter
DOI: 10.1594/pangaea.874718
title: 210Pb based age model of sediment core BH09-2
DOI: 10.1594/pangaea.688760
title: Particulate organic carbon and nitrogen at bottle station SEPT-1999-K9

description: POC/PON measured on a EA 1108 CHN Fisons Instruments CHN analyser according to the methodology suggested by Cutter, G.A. & J. Radford-Knoery (1991) and Verardo et al (1990).
DOI: 10.1594/pangaea.776380
title: (Appendix) Mineral composition of ODP Leg 128 sandstone samples

description: Deep drilling in the Japan Sea during Legs 127 and 128 resulted in recovery of volcanic lithic sandstones from Leg 127, Sites 796 and 797, and feldspathic sandstones from Leg 128, Site 799. Petrographic and geochemical analyses of sandstone framework grains define source-rock lithology and the tectonic setting of the source areas that furnished the framework constituents of these sandstones. Our analyses indicate that upper Miocene sandstones from Site 796 in the northeastern part of the Japan Basin were derived from a dominantly pyroclastic volcanic source or sources that lay in an undissected magmatic arc on or near southwestern Hokkaido, Japan. Lower Miocene sandstones from Site 797, located in Yamato Basin southeast of Yamato Rise, were also derived mainly from a volcanic source area. This source area lay in an undissected to transitional magmatic arc that was probably located in west-central Honshu, Japan, and that included some metamorphic, sedimentary, and plutonic source rocks. Lower Miocene sandstones at Site 799, which lies in the southwestern end of Kita-Yamato Trough on Yamato Rise, were derived primarily from granitic source rocks. Volcanic, metamorphic, and sedimentary source rocks also furnished detritus to this site. The principal source of sediment for Site 799 sandstones was probably the granitic and sedimentary rocks of Kita-Yamato Bank, which lies nearby to the west of Site 799 on Yamato Rise. Minor amounts of volcanic detritus, which was probably shed from Yamato Bank east of Site 799, also reached Site 799. The sandstones from Sites 796, 797, and 799 were deposited at upper to middle bathyal depths by turbidity currents.
description: Supplement to: Boggs, Sam; Seyedolali, Abbas (1992): Provenance of Miocene sandstones from Sites 796, 797, and 799, Japan Sea. In: Pisciotto, KA; Ingle, JCJr.; von Breymann, MT; Barron, J; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 127/128(1), 99-113
DOI: 10.1594/pangaea.817799
title: (Table S1d) Measured tomographic parameters for Oridorsalis umbonatus during ETM-2 for ODP Holes 208-1263C and 208-1262A

description: DEPTH, sediment [m] is given in mbsf. The penultimate chamber was chosen for measurement because the final chamber of foraminifers often shows very thin walls not representative for the overall growth. Where dissolution prevented counting of the number of the chambers, the number is the count of preserved chambers (indicated by &gt;).
DOI: 10.1594/pangaea.874590
title: Compilation of detailed examination of Mn deposits from the North tip of the Baja peninsula prior to DSDP Leg 64

description: he three-site Leg 64 Deep Sea Drilling transect at the tip of the Peninsula of Baja California straddled the transition from continental to oceanic crust. The outer site, 474, penetrated mainly mud turbidites and bottomed in "middle" Pliocene oceanic crust about 3 m.y. old. Two sites on the lower continental slope penetrated hemipelagic muddy sediments, a thin section of low-oxygen, phosphoritic, and glauconitic sediments, and a metamorphic cobble conglomerate; one of the sites, 476, bottomed in deeply weathered granite. The oldest marine sediments at this site are early Pliocene, about 4.5 m.y. old. Depth indicators in these holes suggest that all sites were in almost 1000 meters of water by the time oceanic crust was first generated and sea-floor spreading began. Block faulting, subsidence, and deposition of marine sediments on continental crust had preceded the start of sea-floor spreading. Close examination of lineated magnetic anomalies demonstrates that the transition from continental to oceanic crust in this region is diachronous, as early as 4.9 m.y. in some places, but as young as 3.2 m.y. along the line of the transect. We propose a geological history scenario which involves termination of subduction along the western margin of Baja California at 12.5 Ma, a period of transform motion between the Pacific and North American plates along the Tosco Abreojos Transform Fault zone along the west side of Baja California, and a jump of the Pacific-North American plate edge to the alignment of the Gulf at 5.5 Ma. Between 5.5 Ma and about 3.2 Ma, separation of the blocks occurred locally by sea-floor spreading, but elsewhere by "diffuse extension", largely involving listric normal faulting and thinning of the continental crust, accompanied by subsidence and marine inundation. Thus, the plate edge system in the mouth and southern part of the Gulf evolved as early as 5.5 Ma, but the transition from rifting to drifting was diachronous, starting only 3.2 Ma along the line of the transect.
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: Curray, Joseph R; Moore, David G; Kelts, Kerry; Einsele, Gerhard (1982): Tectonics and Geological History of the Passive Continental Margin at the Tip of Baja California. In: Curray, J.R.; Moore, D.G.; et al., Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, LXIV, 1089-1136
DOI: 10.1594/pangaea.744310
title: Physical oceanography during Michael Sars cruise MS80/1 to the North Sea
DOI: 10.1594/pangaea.821553
title: (Table S5) Previously published whole-shell foraminiferal δ¹⁸O ratios of ODP Hole 143-865C

description: Sediment depth is given in mbsf. The age model was constructed using the published nannofossil biostratigraphy (Bralower and Mutterlose, 1995) and the ages assigned to the datums upon which this biozonation is based (Berggren et al. 1995).
DOI: 10.1594/pangaea.711971
title: Pollen profile VEJLBYG5, Vejlby, Denmark

description: The EPD (http://www.europeanpollendatabase.net) accepted species name is given in the parameter comment. This dataset was archived on 2010-05-11 from the EPD database.
DOI: 10.1594/pangaea.830407
title: Phased haplotype files for 15 nuclear genes in NEXUS format (zipped)

description: generated by DnaSP Ver. 5.10.01
DOI: 10.1594/pangaea.830601
title: Dahlak coral δ¹⁸O record (DGII) from the southern Red Sea

description: Coral palaeoclimatic studies are under way at many sites throughout the wet tropics. However, arid environments have received less attention. Here we report a high-resolution, 63 yr record of coral d18O and d13C extracted from a Porites colony from the Dahlak Archipelago, off the Eritrean coast, in the southern Red Sea. The annual cycles of the coral d18O and d13C are inversely related while their inter-annual variations show a strong positive correlation, with similar inter-decadal trends. Inter-annual variations in coral d18O show a relatively weak correlation with the southern Red Sea SST, but are strongly correlated with the Indian Ocean SST, especially on the decadal time-scale. The range of the inter-annual variations in the coral d18O is high compared to changes in local SST, due to the amplifying effect of simultaneous changes in water isotopic composition. Due to this amplification of the climate signal the coral provides a better indication of regional oceangraphic behaviour than the local SST record. The norrtheast monsoon signal in the coral d18O dominates the mean annual signal and shows the best correlation with the instrumental data sets. It appears that variations in the coral d18O are controlled mainly by variations in the intensity of surface water influx from the Indian Ocean to the Red Sea during the winter northeast monsoon. Of particular significance is that the decadal time-scale variations in the coral skeletal d18O are closely correlated with both the Indian Ocean SST and with variations in the Pacific-based Southern Oscillation index. That is, isotopically light coral skeleton, indicating strong NE monsoon Red Sea inflow, correlates with periods of high Indian Ocean SST and with predominantly negative (El Nino) phases of the Southern Oscillation. The simultaneous nature of inter-decadal changes in Asian monsoon and ENSO behaviour suggest pan-Indo-Pacific tropical climate reorganisation and evolution.
DOI: 10.1594/pangaea.711929
title: Pollen profile MELEN, Melen Gölü, Turkey

description: The EPD (http://www.europeanpollendatabase.net) accepted species name is given in the parameter comment. This dataset was archived on 2010-05-11 from the EPD database.
DOI: 10.1594/pangaea.758722
title: (Table 1) Composition of organic matter in bottom sediments from the Kuril-Kamchatka Trench

description: From results of analyses of sediment samples collected on a profile crossing the Kuril-Kamchatka Trench distribution of organic D, N. carbohydrates, lipids and humic substances was established, as well as nature of their relationship with amorphous silica and clay fraction. Sum of the main biochemical groups of organic matter in the surface layer of sediments (0-1 cm) from the Kuril-Kamchatka Trench amounts to about 15%; neogenetic forms not encountered in living organisms make up 85% of organic matter. Among such forms 26% comprise humic substances formed during initial stages of polymerization of decomposition products of biochemical macromolecules.
description: Supplement to: Romankevich, Evgeny A; Artem'ev, Vladlen E (1969): Composition of the organic matter of sediments from the Kuril-Kamchatka Trench. Oceanology, 9, 644-653
DOI: 10.1594/pangaea.911020
title: Grain size distributions of sand samples from Owens lake site T32-1-L1 in central California, collected in 2016 and 2018

description: P1 was collected in 2016, P2 and P3 in 2018.
DOI: 10.1594/pangaea.759189
title: Physical oceanography during Johan Hjort cruise JH98/9
DOI: 10.1594/pangaea.770843
title: (Table 1) Organic acid analyses from ODP Leg 125 interstitial waters

description: For the first time, short-chain organic acids are described from serpentine-associated interstitial waters. In this geologic setting, formate typically dominates the organic acid assemblage. Within the forearc setting, the organic acids are associated only with unconsolidated serpentine. Their existence may be the result of alkaline hydrolysis of ester linkages in organic matter that has been entrained in the serpentine diapir.
description: Supplement to: Haggerty, Janet A; Fisher, J Berton (1992): Short-chain organic acids in interstitial waters from Mariana and Bonin Forearc serpentines: Leg 125. In: Fryer, P; Pearce, JA; Stokking, LB; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 125, 387-395
DOI: 10.1594/pangaea.842165
title: Ti/Al ratios of ODP Site 160-967

description: The evolution of the Solar System has been shown to be chaotic (Laskar, 1990, doi:10.1016/0019-1035(90)90084-M), which limits our ability to retrace the orbital and precessional motion of the Earth over more than 35-50 Myr (Laskar, 1999, doi:10.1098/rsta.1999.0399). Moreover, the precession, obliquity and insolation parameters (Laskar et al., 1993; Quinn et al., 1991) can also be influenced by secular variations in the tidal dissipation and dynamical ellipticity of the Earth induced by glacial cyclicity (Laskar et al., 1993; Dehant et al., 1990, doi:10.1029/JD095iD06p07573; Tushingham et al., 1991, doi:10.1029/90JB01583; Peltier and Jiang, 1994, doi:10.1029/94GL02058; Mitrovica and Forte, 1995, doi:10.1111/j.1365-246X.1995.tb03508.x, Mitrovica et al., 1997, doi:10.1111/j.1365-246X.1997.tb01554.x) and mantle convection (Forte and Mitrovica, 1997, doi:10.1038/37769). Here we determine the average values of these dissipative effects over the past three million years. We have computed the optimal fit between an exceptional palaeoclimate record from the eastern Mediterranean Sea and a model of the astronomical and insolation history3 by testing a number of values for the tidal dissipation and dynamical ellipticity parameters. We find that the combined effects of dynamical ellipticity and tidal dissipation were, on average, significantly lower over the past three million years, compared to their present-day values (determined from artificial satellite data and lunar ranging (Laskar et al., 1993; Quinn et al., 1991; Stephenson and Morrison, 1995). This secular variation associated with the Plio-Pleistocene ice load history has caused an average acceleration in the Earth's rotation over the past 3 Myr, which needs to be considered in the construction of astronomical timescales and in research into the stationarity of phase relations in the ocean-climate system through time.
description: DEPTH, sediment/rock [m] is given in mbsf. The data were generated by Rolf Wehausen and Hans-Jürgen Brumsack.
description: Supplement to: Lourens, Lucas Joost; Wehausen, Rolf; Brumsack, Hans-Jürgen (2001): Geological constraints on tidal dissipation and dynamical ellipticity of the Earth over the past three million years. Nature, 409(6823), 1029-1033
DOI: 10.1594/pangaea.740191
title: Age determination of sediment core BEGBUNAR, Peat-bog Begbunar, Bulgaria

description: This dataset was archived on 2010-05-11 from the EPD database (http://www.europeanpollendatabase.net).
DOI: 10.1594/pangaea.822890
title: Meteorological measurements in the upper air at station Bellary, 1933-05-15 to 1935-12-31, ERA-CLIM ID 5794

description: Altitude = Height above sea-level
DOI: 10.1594/pangaea.704815
title: (Table 1) Elemental data for composites from DSDP Site 51-417A
DOI: 10.1594/pangaea.920093
title: Splice tie points from ODP Hole 143-865B and 143-865C
DOI: 10.1594/pangaea.920096
title: Mapping pairs for adjusting mcd to amcd from ODP Hole 143-865C
DOI: 10.1594/pangaea.920101
title: Astronomical tuning tie-points on adjusted metres composite depth
DOI: 10.1594/pangaea.747133
title: Meteorological observations during Vrouwe Johanna Cores cruise from Coastal Gulf of Guinea started at 1751-11-06
DOI: 10.1594/pangaea.730128
title: (Table 71) Parameter b of smectites from sediments of the Nauru Basin at DSDP Site 61-462
DOI: 10.1594/pangaea.917725
title: AMS measurements from discrete samples of IODP Exp 371 sites
DOI: 10.1594/pangaea.867909
title: Annotated record of the detailed examination of Mn deposits in the Atlantic Ocean and the Mediterranean Sea

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.712770
title: (Table A10) Carbonate, total organic carbon and sulphur content of sediment core POS158/1_0018/1
DOI: 10.1594/pangaea.824855
title: Vane shear strength measurements from IODP Hole 334-U1378B

description: Geocode = Depth CSF-A (m)
DOI: 10.1594/pangaea.723316
title: Description of profile 7140-251
DOI: 10.1594/pangaea.830268
title: Magnetic parameters of the Bay of Seine seafloor dried grab samples at t0 (i.e. from June to September 2011), t1 (i.e. in March 2013), t2 (i.e. in June 2013) and t3 (i.e. in September 2013)

description: Determination of Anhysteretic Remanent Magnetization (ARM), Saturation Isothermal Remanent Magnetization (SIRM) and Isothermal Remanent Magnetization (IRM) was performed with a superconducting rock magnetometer SRM760R (2G enterprises). The ARM is an artificial magnetization gained in an alternating magnetic field of 100 mT superimposed on a steady field of 50 µT, which is comparable to the strength of the geomagnetic field. The ARM is afterward subject to demagnetization at 30 mT (ARM_30 ). The SIRM was acquired at 3 T and the IRM at 0.3 T in the opposite direction using a pulse magnetizer MMPM9 (Magnetic Measurements ltd). The S-ratio was calculated after the formula 0.5(1-IRM/SIRM) and allows for an estimation of the relative abundance of high coercivity minerals. TheS-ratio comesclose to 1when low-coercive mineralssuch a as magnetite dominate the signal,and decreaseswith increasing amount of high-coercive mineralssuch as hematite (Bloemendal et al., 1992).The Hard Isothermal Remanent Magnetization (HIRM) was calculated after the formula (SIRM-IRM)/2 and allows for an estimation of the absolute concentration of high coercivity minerals (e.g. hematite). ARM/SIRM is used as an estimator of the relative magnetic grain size. ARM_30 /ARM is also used as a magnetic grain-size estimator since samples display a constant mineralogy.
DOI: 10.1594/pangaea.843707
title: Station list and links to master tracks in different resolutions of HEINCKE cruise HE262, Bremerhaven - List/Sylt, 2006-09-25 - 2006-09-28
DOI: 10.1594/pangaea.822257
title: Meteorological measurements in the upper air at station Anadyr, 1954-10-19 to 1955-04-21, ERA-CLIM ID 4603
DOI: 10.1594/pangaea.829536
title: Literature references and germination trait values for different group of plant species

description: Germination is the first essential stage in crop and food production, as well as for the establishment of trees and regeneration of wild species. Temperature and water potential are the primary environmental factors that control germination in all species, and affect both the rate and final percentage germination. A comprehensive description of intra- and inter-variations between groups of species (perennials and annuals, trees, grasses, crops and wild species) helps understand where these species are currently able to grow on earth and will be in the future. By collecting germination trait data on 243 species from the literature and unpublished data, we provide a wide spectrum of species' seed germination traits, in the form of a set of parameter values describing germination responses to variations in temperature and water potential. Major differences in germination traits were seen to depend on the climatic conditions where the species grow or originated, with species able to germinate on ice and others unable to germinate below 18 °C. By contrast, within the different plant groups, similar ranges of threshold values were found, linked to the species geo-climatic origin. Crops however germinate faster, their range of threshold temperatures and water potential values is wider, and some crops have higher optimum and maximum temperatures as well as lower water potential threshold values. This is likely the result of human selection for rapid germination and for species able to grow in the wide range of environmental conditions where agriculture was developed. Our analyses revealed correlation between traits: negative correlations appeared between germination speed and temperature thresholds, and between temperature and water potential thresholds. The collected data also form a valuable database, enabling plant establishment to be better taken into account in modeling and simulation studies of vegetation boundaries (wild or cultivated) under changing land-use and climate.
description: Excel file (110 kB) contains list of references that were collected, the list of species for which data on germination traits were found; the germination trait values for the different groups of species we have made.
description: Supplement to: Dürr, Carolyne; Dickie, John B; Yang, Xiang-Yun; Pritchard, Hugh W (2014): Range of critical temperature and water potential values for the germination of species worldwide. Agricultural and Forest Meteorology, 200, 222-232
DOI: 10.1594/pangaea.829507
title: Wind direction and speed from the Vernagtferner Basin - Vernagtbach station, for the year 2007
DOI: 10.1594/pangaea.896836
title: Carbonate, abundance of pyrite and siderite and nannofossil Whole Shield Index during Pthe PETM at Millville
DOI: 10.1594/pangaea.715935
title: Grain size analysis and geochemistry of soil profile 7140-107

description: values &lt;0.1 are traces
DOI: 10.1594/pangaea.784330
title: Laser profiles of sea ice surface roughness during campaign IRIS 2004 from flight IRIS2004_200403140804
DOI: 10.1594/pangaea.917766
title: Radiosonde measurements from station Southern Great Plains (2019-01)

description: Launches may be at irregular time intervals. The radiosonde measurements from station Southern Great Plains are used for Billings and E13