cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.745650
title: K-Ar dating of magmatic rocks from the Urup Island, Kuril Island Chain

description: An isotope-geochronological study of Neogene-Quaternary igneous rocks from the Urup Island (Greater Kuril Ridge) was carried out. It was established that magmatic activity in the island developed during the last 10 my and it was not interrupted by long inactive periods. K-Ar data obtained along with results of diatomic analysis are in good agreement with the regional stratigraphic scheme of Paleogene and Neogene deposits and the intraregional correlation scheme of magmatic rocks in the Kuril Islands, which are developed for the State Geologic Map, scale 1:200 000 (Second edition). In the present-day territory of the Urup Island, the earliest Late Miocene - Early Pliocene (10.5-4.5 Ma) magmatic stage was associated with formation of the Rybakovsky andesite volcanic complex, which is represented by an effusive series (Rybakovskaya Suite) and subvolcanic rocks. Actually at the same time (6.6-4.7 Ma), but at a great depth, intrusive bodies of the Prasolovsky plagiogranite-diorite plutonic complex were intruded. The Pliocene stage of magmatism in the Urup Island is characterized by formation of rocks of the Kamuysky dacitic volcanic complex (4.0-2.1 Ma). This complex is locally represented only by subvolcanic acidic bodies, and its occurrence in the island is limited. During the Pliocene - Early Neopleistocene stage of magmatism (3.0-0.8 Ma) the Fregatsky andesibasalt volcanic complex was formed in the Urup Island. This complex includes effusive series (Fregatskaya unit) and subvolcanic bodies. Quaternary time in the Urup Island is characterized by eruptive activity in subaerial conditions with formation of effusive-pyroclastic intermediate-basic rocks of the Bogatyrsky Middle Neopleistocene - Holocene complex (&lt;0.5 Ma). Rocks of this complex formed stratovolcano cones. Pyroclastic rocks of the Rokovsky dacitic volcanic complex were erupted simultaneously. The mentioned magmatic complexes of the Urup Island well correlate with the distinguished magmatic complexes within the bounds of contiguous insular blocks of the Greater Kuril Arc and confirm uniform geologic history of magmatic development of the region.
DOI: 10.1594/pangaea.755209
title: (Table 2d) Accumulation of glucose and protein hydrolysate by natural populations of microorganisms at Station ML27_2163

description: Glucose - 0.5-2.0 mg/l; protein hydrolysate - 0.5 mg/l.
DOI: 10.1594/pangaea.788049
title: (Table 4-2) Exchange capacity of ore minerals from ferromanganese micronodules and macronodules of the Indian Ocean for metal cations

description: C_sol = 1000 mg-eq/l
DOI: 10.1594/pangaea.762973
title: (Table 2) Chemical composition of ice-rafted brecciated crystalline schist and biotite-garnet crystalline schist from the Kara Sea

description: Composition and distribution.of ice-rafted coarse debris from the Kara Sea bottom were investigated. This material was obtained on 42 stations in Cruise 49 of R/V Dmitry Mendeleev by Sigsby trawls, box corers, grabs, and gravity corers. Existence of two main petrographic provinces is suggested: (1) West Kara and (2) East Kara. They differ in composition and sources of debris material. It is supposed that debris was transported mainly by floating ice. In Upper Pleistocene time rafting by glaciers and icebergs was also very possible.
description: Supplement to: Lisitzin, Alexander P; Kharin, Gennady S; Chernysheva, E A (2004): Coarse ice-rafted debris in the bottom sediments of the Kara Sea. Translated from Okeanologiya, 2004, 44(3), 440-456, Oceanology, 44(3), 412-427
DOI: 10.1594/pangaea.818520
title: (Table 2) Hysteresis and thermomagnetic characteristics of DSDP Leg 64 Holes igneous rocks

description: The first row (heating cycle) of hysteresis data pertains to the unheated (original) sample. The second row (cooling cycle) of data corresponds to the sample heated to obtain thermomagnetic curves. For Sample 64-477A-2-2,8-10, the first two rows of data pertain to unheated samples and show the reproducibility of measurements.
DOI: 10.1594/pangaea.788047
title: (Table 2-3) Contents of metal cations in ferromanganese micronodules from the Canary Basin of the Atlantic Ocean
DOI: 10.1594/pangaea.833822
title: Coccolithophores from near the Volturno estuary surface sediment samples

description: Sample collection during I-AMICA_1_2012 cruise (19-21 June 2012). Project PON03 I-AMICA (High technology infrastructure for the Climate-Environmental Integrated Monitoring; http://www.i-amica.it), Development Objective OR4.4 - Study and monitoring of the interface processes between the biosphere, hydrosphere and functionality of coastal ecosystems.
DOI: 10.48577/jpl.ycxmta
title: Testbed Multi-star Wavefront Control Experiement Modeling Analysis

description: Astro2020 Decadal Survey calls for a mission yield goal of 25 or more habitable zone planets detection and characterization in its recommendation of next NASA flagship mission, the Habitable World Observatory (HWO). Multi-star wavefront control (MSWC) is a technique that enables simultaneous star light suppression of a binary or more star system. It has the potential to help achieve the goal by substantially increasing viable target samples to beyond single star systems. Technology development for MSWC has been ongoing for a number of years. Recently a better than 1e-7 contrast was demonstrated at JPL’s high contrast imaging testbed (HCIT) with a true binary source for the first time mimicking the Alpha Centauri star system. Here we present (high order) wavefront sensing and control (HOWFSC) modeling analysis of the testbed experiments. Our model is a modified extension of the HOWFSC engineering model that has proven to be a valuable tool for Roman Coronagraph Instrument (CGI) and was validated on HCIT. It includes crucial engineering features and factors relevant to testbed (while omitting CGI specific elements) such as probing and sensing with detector noise and finite bandwidth used. The analysis provides important insight into and understanding of MSWC and identifies potential performance-limiting factors that were not previously considered. Adjustments in both hardware and WFSC strategy and algorithm are discussed for next round testbed experiments to improve performance necessary for both Roman and HWO. This work was performed at the Jet Propulsion Laboratory / California Institute of Technology under contract to NASA.
DOI: 10.1594/pangaea.783307
title: InSAR Digital Elevation Models for subsidence with link to geotiff files

description: The main result of the SAR interferometric analysis is a temporal series of displacement maps on coherent targets in the satellite line-of-sight direction. Local InSAR Digital Elevation models are provided for two regions, Alaska Northslope (US) and Mackenzie River Delta (Canada): ASAR InSAR DEM, North Slope (Alaska); Terra SAR-X InSAR DEM North Slope (Alaska); Terra SAR-X InSAR DEM, Mackenzie River Delta (Canada).The development of SAR interferometry to detect long-term surface subsidence due to permafrost-related phenomena appears to be an excellent research opportunity. However, the use of this data for permafrost applications is still being developed. Multiple interferograms from different sensors (ERS-1/2, ENVISAT, ALOS, TerraSAR-X) were used within this project. In consideration of data availability, land and snow cover and topography a short-baseline interferometric approach was employed (Berardino et al., 2002, doi:10.1109/TGRS.2002.803792). The main result of the SAR interferometric analysis is a temporal series of displacement maps on coherent targets in the satellite line-of-sight direction. The subsidence parameter represents the surface displacement along the satellite line-of-sight relative to a reference position and reference time. The most important sources of inaccuracy are related to atmospheric artifacts and phase unwrapping errors.The product guide: hdl:10013/epic.39375.d007This dataset is part of the ESA Data User Element (DUE) Permafrost Local Services-I Set (doi:10.1594/PANGAEA.783634).
DOI: 10.1594/pangaea.845177
title: Occurrence of cockroach species on islands of the Capricorn and Bunker Group, Queensland coast

description: 0 = absence, 1 = presence
DOI: 10.1594/pangaea.755369
title: (Table 6) Fractions separated by gel chromatography from hydrolyzed humic acids of bottom sediments from the Western Pacific

description: MMR - provisional molecular mass limits (x 0.01) for dextrans.
DOI: 10.1594/pangaea.760063
title: (Table 3) Carbon-14 dioxide assimilation rate in water samples from the Broken Spur and TAG hydrothermal fields
DOI: 10.1594/pangaea.778590
title: Relative contents of clay minerals in &lt;0.001 mm grain size fraction from recent bottom sediments of the Vistula vermiculite and Neman provinces in the Gdansk Basin, Baltic Sea

description: &gt;0 = traces; 0 = not found
DOI: 10.1594/pangaea.510669
title: Sampling list for sediment investigation of layer and bioturbate structures off East African coast (Table 1)
DOI: 10.1594/pangaea.810225
title: Hydrochemistry measured on water bottle samples during BAFFIN cruise BAF91/1
DOI: 10.1594/pangaea.815338
title: (Table 1a) Contents of biogenic components in surficial bottom sediments of the Chukchi Sea
DOI: 10.1594/pangaea.784616
title: (Table 51-1) Concentrations of nutrients in interstitial waters from bottom sediments collected by grabs within the Tajura Rift
DOI: 10.1594/pangaea.811830
title: (Table 5) Duration of ice cover and open water season at Great Bear Lake and Great Slave Lake, Canada
DOI: 10.1594/pangaea.714837
title: (Table 4) Rates of dolomite formation for ODP Leg 175 sites
DOI: 10.1594/pangaea.777727
title: Proportion of macroinvertebrate trait categories in river biotopes across England and Wales

description: For information on sampling areas and sampling design see Method section of Demars et al. (2012).
DOI: 10.48577/jpl.pacx7t
title: PALETTE Parabolic Reflector Radiator for LuSEE-Night

description: This paper reports on the current status of the PALETTE PRR for LuSEE-Night project, which is adapting low-cost parabolic reflector radiator (PRR) technology developed on the previously completed PALETTE project for the LuSEE-Night (21 cm cosmology) mission. A low-cost PRR is achieved with a two-piece (radiator plate + reflector) design using parts that can either be 3D-printed or conventionally machined. LuSEE-Night is a 2026 CLPS mission to a low latitude (20 S) lunar farside site and it has a side-facing radiator that must be a PRR in order to stay cool during lunar daytime. Project goals are to: (a) design/build/test a 1/9th-size subscale PRR; and (b) design/build/test/deliver nine flight PRR reflectors. LuSEE-Night will produce a large flight PRR radiator plate to which nine flight PRR reflectors made by JPL will mate. Required PRR performance is a radiative sink temp &lt; 231 K at lunar noon. Flight PRR reflector delivery is slated for April 2024. Funding was provided by NASA GCD.
DOI: 10.1594/pangaea.758957
title: (Table 2) Weight percent organic carbon from ODP Site 138-847

description: As the length of marine cores increases and sampling intervals decrease, the need for rapid and inexpensive means of determining sediment composition has become apparent. In this study we examine one potentially useful technique for assessing compositional changes in marine cores, diffuse reflectance spectrophotometry. We examined near-ultraviolet, visible, and near-infrared reflectance spectra from five data sets. Each data set consists of calibration samples and test samples. The calibration samples' spectra were related to a sediment component using multiple linear regression. The resulting regression or calibration equations were then evaluated using the test samples. Calibration equations were written relating spectra to several sediment components incduding carbonate (Atlantic and east Pacific Rise ODP Site 847), organic carbon content (Atlantic and east Pacific Rise), and opal content (east Pacific Rise). The correlation coefficients for the regression equations ranged from a high of 0.99 for carbonate and opal at ODP Site 847 to a low of 0.97 for Atlantic carbonate indicating that spectral variations are highly correlated to sediment composition. All of the equations include a substantial number of variables from shorter visible and longer near ultraviolet wavelengths suggesting that these wavelengths are especially important for devices designed specifically to scan marine cores. Although equations for estimating organic and carbonate content appear independent of other sediment components, the opal equation is strongly dependent on carbonate content indicating that opal concentration is correlated to carbonate content.Tests of the calibration equations indicated that all our equations reasonably estimate the pattern of changes, either down core or in surface sediments. Where our spectral estimates have difficulty is with absolute values, frequently over or underestimating observed values by a substantial amount. Within these limitations diffuse reflectance spectrophotometry can be a useful tool for characterizing marine cores and as our understanding of the relationship between spectra and mineralogy improves so will estimates of absolute values.
description: Supplement to: Balsam, William L; Deaton, Bobby C (1996): Determining the composition of late Quaternary marine sediments from NUV, VIS, and NIR diffuse reflectance spectra. Marine Geology, 134(1-2), 31-55
DOI: 10.1594/pangaea.837927
title: (Table 1) Characteristics of epibenthos sampling stations during Walther Herwig III Cruise WH233 along the southern shelf of Greenland
DOI: 10.1594/pangaea.744126
title: Physical oceanography during Argos cruise Argos86/2 to the North Sea
DOI: 10.1594/pangaea.753486
title: (Table 6) Relative abundance of Miocene and Pliocene sponge spicules from ODP Site 113-696

description: X = present, - = absent, the occurrence of "actino"- specimens are designated by "a".
DOI: 10.48577/jpl.riiitg
title: Wafer-scale MgB2 films and fabrication processes for THz superconducting devices

description: No abstract available.
DOI: 10.1594/pangaea.803347
title: (Table 11) Paleomagnetic characteristics of descrete samples from ODP Site 165-998

description: Sediment depth is given in mbsf. All samples are from the working halves of the split cores. Laboratory comment: ODP_JRMM: Shipboard measurements made on the JOIDES Resolution during Leg 165 using the Molspin Magnetometer; ODP_JRAC: Shipboard measurements made on the JOIDES Resolution during Leg 165 using the AC-SQUID Cryogenic Magnetometer; ODP_JRDC: Shipboard measurements made on the JOIDES Resloutions during Leg 178 using the DC-SQUID Cryogenic Magnetometer; UNM_AC: Shorebased measurements made at the University of New Mexico using an AC-SQUID Cryogenic Magnetometer; ODP_TAMU: Shorebased measurements made at Texas A&M University using an AC-SQUID Cryogenic Magnetometer.
DOI: 10.1594/pangaea.806678
title: (Tables 3, 4) Age models of ODP Leg 138 sites

description: The sediments recovered during Leg 138 have provided us with a remarkable opportunity to improve the stratigraphic framework for east-central Pacific Ocean Neogene age sediments. In this chapter, we review some of the data that have been generated and derive best estimates for the ages of potentially useful biostratigraphic datums, within the paleomagnetic temporal framework of Shackleton et al. determined for this volume and also, for comparison, according to the 1985 and 1992 paleomagnetic time scales of Berggren et al. and Cande and Kent, respectively.
description: Sediment depth is given in mcd.
description: Supplement to: Shackleton, Nicholas J; Baldauf, Jack G; Flores, José-Abel; Iwai, Masao; Moore, Theodore C; Raffi, Isabella; Vincent, C (1995): Biostratigraphic summary for Leg 138. In: Pisias, NG; Mayer, LA; Janecek, TR; Palmer-Julson, A; van Andel, TH (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 138, 517-536
DOI: 10.1594/pangaea.760333
title: (Table 2) Concentration of suspended matter and dissolved Mn in water samples above the Mid-Atlantic Ridge rift zone near 29°N

description: Data on nephelometry, CTD probing, and dissolved manganese obtained during Cruise 34 of R/V Akademik Mstislav Keldysh showed that a multiplume was found over the Mid-Atlantic Ridge rift zone near 29°N. This multiplume comprises plumes of several hydrothermal vents and is separate from the plume of the Broken Spur hydrothermal field. Approximate coordinates were estimated for three vents.
description: Supplement to: Lukashin, Vyacheslav N; Lisitzin, Alexander P; Ivanov, Georgy V; Kravtsov, Victor A; Rusakov, Valery Yu (1997): Investigation of hydrothermal plumes over the rift zone of the Mid-Atlantic Ridge near 29°N. Translated from Okeanologiya, 1997, 37(5), 770-779, Oceanology, 37(5), 695-704
DOI: 10.1594/pangaea.836605
title: Environmental measurements from the Black Sea in Odessa region, Ukraine, July 2014

description: The Black Sea is the unique ecosystem with lots of geological, ecological and biological features. For full understanding of these systems it is very important to investigate and indentify the microbial communities, including how the environment shapes its genome. Despite the data obtained by different investigations about the certain groups of microorganisms, isolated as pure cultures on nutritive mediums the total microbial metagenome hasn't been analysed. During July 2014 the 9 sites along the coast in Odessa region were selected for sampling of surface marine water, isolation of total DNA and further sequence 16S rRNA analysis. The water sampling and filtration were accompanied by measurement of metadata for evaluation of how the environment influences the present microbial biodiversity.
DOI: 10.1594/pangaea.820025
title: (Table 1) Stratigraphic position, abundance, shape, color, and refractive indices of glass shards of selected samples from DSDP Leg 60 Holes vitric muds

description: Precisely determined refractive indices of glass shards from 32 ash-rich, volcaniclastic sediments, mostly turbidites interbedded with nonvolcanic sediments in the Mariana Trough, range from 1.480 to 1.585 (corresponding to SiO2 ca. 75 to 49%), with most in the range 1.500 to 1.540 (SiO2 ca. 70-62%) and a second, smaller mode between ca. 1.560 and 1.585 (57 to 49% SiO2). Shards are almost exclusively colorless from 1.480 to ca. 1.530, light brown with minor colorless and green tones between 1.530 and 1.560, and dominantly brown at higher refractive indices. Tubular pumice shards are more common at higher silica percentages and non- to poorly-vesicular cuniform shards at low SiO2 values, but there is no clear correlation between shape and composition of shards. About half of the samples have bimodal shard populations with silica differences ranging up to 20 percent; unimodal layers have a range of up to about 7 percent SiO2. Of 21 samples in which one type of shard dominates, seven have the main mode in the rhyolitic composition (&gt;69% SiO2), eight in the intermediate range (56 to 69% SiO2), and five in mafic composition (SiO2 &lt;53%). These unusually abundant mafic shards occur mainly in site survey piston cores, SP-IA and 4E, and in Holes 454, 456, 458, and 459B. These are the sites closest to the present arc. Hole 453, containing by far the most vitric tuff turbidites, shows a gradual increase in silica content of ash layers upward to the hole from Cores 36 to 19 (about 4.6 to 3.0 Ma). A drastic decrease in ash-rich beds in the younger (Pleistocene) part of this hole was noted by the shipboard party (see site chapter, Site 453) and was interpreted by them as indicating increasing distance from the arc volcanoes as the trough opened. The increase in silica in ashes from the early to the late Pliocene at Site 453 could be interpreted in the same way and might indicate that the trough started to open in early Pliocene time.
description: Supplement to: Schmincke, Hans-Ulrich (1982): Ash from vitric muds in deep sea cores from the Mariana Trough and Fore-Arc Region (South Philippine Sea) (Sites 453, 454, 455, 458, 459, and SP), Deep Sea Drilling Project Leg 60. In: Hussong, DM; Uyeda, S; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 60, 473-481
DOI: 10.1594/pangaea.756571
title: Chemical composition of Fe-Mn nodules from the Pacific Ocean

description: Calcareous and siliceous biogenic components have been studied in deep-water iron-manganese nodules from the northern and southern Pacific Ocean. Calcareous material consists of foraminifera remains, calcareous algae, and coccolithophorids, whereas siliceous material consists of remains of radiolarians and diatoms, as well as sponge spicules. Structures similar in morphology to coccal and filiform bacteria have been found in both outer and inner sections of the nodules indicating that microorganisms may be directly or indirectly involved in their development.
description: Supplement to: Baturin, Gleb N; Shevchenko, Alla Ya (1987): Biogenic components in deep-water iron-manganese nodules. Oceanology, 27(2), 193-196
DOI: 10.1594/pangaea.811351
title: (Table 1) Chlorophyll a concentrations in the upper part of the water column below the ice in the Amundsen Gulf

description: Note high concentrations near the surface at the ice-water interface, and deep chlorophyll maximum at &gt;12 m depth.
DOI: 10.1594/pangaea.816634
title: (Table 1) Magnetic properties of basalt samples, at DSDP Legs 69 and 70

description: We studied magnetic properties of basalts from cores of Sites 504 (mainly Hole 504B) and 505. According to magnetic and petrographic data, the basalts are altered to different degrees. We determined the ratio Ist/Iso and the Curie points of the basalts. In Hole 504B there is vertical zoning of titanomagnetite alteration: in the upper part of the basement, low temperature titanomaghemitization predominates (IST/Iso &gt; 1); in the lower part of the hole, multi-phase alteration (IST/Iso &lt; 1) predominates. This is evidence for superimposition of multi-phase alteration after single-phase oxidation. The latter process occurred at low temperatures. Multi-phase alteration is represented by exsolution and unmixing of titanomagnetite. Its appearance is connected with extended secondary heating at temperatures of about 100°C, documented by thermal measurements in the hole. Magnetic properties of basalts from Site 505 are typical of submarine pillow lavas that contain fine-grained titanomaghemite.
description: Supplement to: Pechersky, D M; Tikhonov, L V; Pertsev, Nikolay N (1983): Magnetic properties of basalts, Deep Sea Drilling Project Legs 69 and 70. In: Cann, JR; Langseth, MG; Honnorez, J; Von Herzen, RP; White, SM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 69, 705-710
DOI: 10.48577/jpl.7unvfy
title: GHRSST Data Discovery and Cataloguing Service : A federated access to all sea surface temperature data

description: No abstract available.