Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-05-24T08:32:44Z GCMD Search: [Paleo_Temporal_Coverage: Chronostratigraphic_Unit/Eon='PHANEROZOIC', Chronostratigraphic_Unit/Era='MESOZOIC', Chronostratigraphic_Unit/Period='CRETACEOUS'] http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 56 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CDA_AR_GEO_TABARIN_LOCALITIES Geology of new locatilies on Tabarin Peninsula, Northern Antarctic Peninsula -57.01,-62.48,-57.01,-62.48-57.12,-63.51,-57.12,-63.51 1998-02-01T00:00:00Z T00:00:00Z 2013-04-22T04:00:00Z New outcrops of the Hope Bay Formation and Larsen Basin rocks have been exposed by the recent ice retreat on Tabarin Peninsula, Northern Antarctic Peninsula. Quartzose, very low-grade metasedimentary ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_OFR_2004_1013 Maps Showing the Stratigraphic Framework of South Carolina's Long Bay from Little River to Winyah Bay -81.0,32.5,-78.5,34.0 1994-01-01T00:00:00Z 1999-12-31T00:00:00Z 1999-01-01T00:00:00Z T00:00:00Z 2013-01-24T05:00:00Z South Carolina's Grand Strand is a heavily populated coastal region that supports a large tourism industry. Like most densely developed coastal communities, the potential for property damage and lost ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]dlb_LarsenBasin Sedimentary rocks of Larsen basin -58.25,-64.5,-56.5,-63.75 2013-01-24T05:00:00Z This dataset consists of: (1) a suite of sedimentary rocks (primarily sandstones, with subordinate mudstones, conglomerates, glauconites and volcanic ashes) collected from Cretaceous through Paleogene ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Ford_Ranges Structural data: brittle faults for the Ford Ranges, Marie Byrd Land, Antarctica -160.0,-80.0,-135.0,-75.0 1998-11-01T00:00:00Z 2002-06-30T00:00:00Z 2012-08-23T04:00:00Z The geological data sets for the Ford Ranges of western Marie Byrd Land include: - Structural measurements for minor brittle faults, fracture arrays, and dike arrays ... http://gcmd.gsfc.nasa.gov/getdif.htm?[NOAA-NMMR]gov.noaa.ngdc.G00502 NGDC Marine Geology Data Reports -180.0,-90.0,180.0,90.0 1930-01-01T00:00:00Z 1993-05-06T00:00:00Z 2011-03-03T05:00:00Z ABSTRACT: Geologic data reports available are from academia, government, and foreign sources. Reports may contain one or more of the following types of analyses of sediment or hardrock from the ocean ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]KTSeymour Carbon and Oxygen Isotope Variation in Bivalves from Cretaceous and Paleocene of Seymour Island, Antarctica -56.0,-64.0,-56.0,-64.0 2010-07-09T04:00:00Z Data include carbon and oxygen isotopic data from bivalves collected from the late Cretaceous and Paleogene of Seymour Island. These include bulk sample analyses averaging multiple years ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]UCR_PMS_AMMONITE_01 Ammonite Locations on Seymour Island -56.82,-64.32,-56.71,-64.25 2010-07-07T04:00:00Z Location records for fossil ammonite and belemnite finds in the Maastrichtian Lopez de Bertodano Formation, Seymour Island, Antractica, collected by William Zinsmeister. These data are part of the ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]UCR_PMS_AMMONITE_02 Campanian-Maastrichtian Ammonite Range Charts -56.82,-64.32,-56.71,-64.25 2010-07-07T04:00:00Z Summary of published range charts for Campanian and Maastrichtian ammonites from Seymour Island, Antarctica, and world-wide. The relational database is managed by the CONMAN9 software ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]VertPaleo Cretaceous Vertebrate Fossils from the Antarctic Peninsula 2010-07-07T04:00:00Z This data set includes collections of vertebrate fossils, replicas, and their contextual data. Included within the data set are chondricthyans, teleosts, reptiles, and avian remains. ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Geochemical_data_Seymour_Island_Antarctic_Peninsula Geochemical data from the Late Cretaceous of Seymour Island, Antarctic Peninsula 57.0,64.3,56.7,64.5 2007-03-15T00:00:00Z 2009-03-14T00:00:00Z 2010-07-07T04:00:00Z Geochemical Data from latest Cretaceous and Early Eocene deposits on Seymour Island Antarctic Peninsula. 87Sr/86Sr analysis of bone taken from the skeleton of the Polarornis gregorii, 87Sr/86Sr values ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NBP0209_geophysics Nathaniel B. Palmer 0209 - underway geophysical data 163.1,-76.7,-174.6,-43.6 2002-12-11T00:00:00Z 2002-12-31T00:00:00Z 2010-07-07T04:00:00Z This data set contains underway geophysical data collected on a transit cruise between Lyttelton, New Zealand and McMurdo Base, Antarctic during December of 2002. We collected gravity ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Harry-0408475 Uplift and exhumation of the Tranantarctic Mountains -175.0,-85.0,-175.0,-85.0 2010-07-02T04:00:00Z This data set is a paper published in Earth and Planetary Science Letters concerning the mid-Cretaceous through mid-Cenozoic tectonic evolution of west Antarctica. Follows is the abstract. ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]OPP0003844-JRB-JAC Vega Island Stratigraphy, Biostratigraphy, and Chronostratigraphy 2010-07-02T04:00:00Z All of the latest Cretaceous dinosaurian and avian specimens have been recovered from the shallow marine deposits within the James Ross Basin, northeastern Antarctic Peninsula. The dinosaur ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CDA_AR-CRETACEOUS-PALEOGENE_OF_SOUTHERN_PATAGONIA_MAIN_BIOSTRATIGRAPHIC_EVENTS CRETACEOUS-PALEOGENE OF SOUTHERN PATAGONIA: MAIN BIOSTRATIGRAPHIC EVENTS -PICT7-32320 2009-08-10T04:00:00Z ENGLISH The goal of this Project is to increase the paleobotanical, palynological and biostratigraphic information of the Cretaceous and Paleogene in selected areas of Southern Patagonia, integrating ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CDA_AR_PICTA-23-2004-PALAEO-VERT CRETACEOUS - PALEOGENE VERTEBRATES FROM THE JAMES ROSS BASIN, ANTARCTIC PENINSULA: EVOLUTION AND BIOGEOGRAPHY -180.0,-90.0,180.0,-62.83 2009-06-25T04:00:00Z ENGLISH Latest Cretaceous-Paleogene sedimentary sequences in the James Ross Basin, Antarctica contains a unique record of marine and terrestrial vertebrates that documents ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K061_1999_2000_NZ_1 Volcanology and sedimentology of the phreatomagmatic eruptive system of the Mawson Formation in Coombs Hills, Victoria Land, Antarctica 159.0,-77.0,161.0,-76.5 1999-11-28T00:00:00Z 1999-12-28T00:00:00Z 2009-02-13T05:00:00Z The volcanology and sedimentology of a phreatomagmatic eruptive system in the Coombs Hills, Victoria Land was investigated to determine how magmatism is initiated and evolves during continental rifting. ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NBP0701mgg Nathaniel Palmer 0701 - underway geophysical data 164.3,-77.8,-178.2,-43.7 2006-12-22T00:00:00Z 2007-01-28T00:00:00Z 2009-02-02T05:00:00Z This data set contains underway geophysical data that were collected on NBP0701. The project consisted of a transit from Lyttelon, New Zealnd to the work are off of Cape Adare, Antarctica and then ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Global_Paleogeography Global Paleogeographic Views of Earth History - Late Precambrian to Recent -180.0,-90.0,180.0,90.0 2009-01-21T05:00:00Z [From Global Paleogeographic Views of Earth History - Late Precambrian to Recent, by Ronald C. Blakey, "http://jan.ucc.nau.edu/~rcb7/globaltext2.html"] The globes presented ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_1998-027 Western Interior Seaway Drilling Project Data -114.0,34.0,-96.0,43.0 2009-01-21T05:00:00Z This data set presents the results of a coordinated, multidisciplinary study of Cretaceous carbonate and clastic rocks in cores collected along an E-W transect across the old Cretaceous ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NORTH_GULF_MEXICO_OIL_RESERVES Atlas of Northern Gulf of Mexico Gas and Oil Reservoirs -105.0,15.0,-75.0,30.0 2008-09-22T04:00:00Z The Atlas of Northern Gulf of Mexico Gas and Oil Reservoirs is a compilation of geologic and engineering data for over 4,000 reservoirs in the Gulf Coast region. Data was compiled through a cooperative ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_OFR_2006_1084_EBP_AC_CA Subsurface structure of the East Bay Plain ground-water basin: San Francisco Bay to the Hayward fault, Alameda County, California -122.4,37.4,-121.8,38.2 2008-05-27T04:00:00Z The area of California between the San Francisco Bay, San Pablo Bay, Santa Clara Valley, and the Diablo Ranges (East Bay Hills), commonly referred to as the &East Bay&, contains the East Bay Plain ... http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_413 Ocean Drilling Program Participation 62.0,-70.0,159.0,-54.0 1988-09-30T00:00:00Z 1995-03-31T00:00:00Z 2008-04-10T04:00:00Z The Ocean Drilling Program (ODP) has been the largest cooperative marine geology program in history. The Australian Antarctic Division contributed to the Australian ODP budget while ODP was drilling ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2005-036 North Atlantic Cretaceous Calcareous Nannofossil Data -76.38,29.58,-76.38,29.58-76.14,30.6,-76.14,30.6 2008-03-04T05:00:00Z Well-preserved nannofossil and stable isotope records from the mid-Cretaceous of ODP Leg 171B (western North Atlantic) indicate cyclical, productivity-based variations in surface water characteristics, ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_1999-009 Early Cretaceous Tethys Major-Element Data 5.68,46.86,15.68,55.41 2007-08-07T04:00:00Z Breitenbach-XRF-1994. Major element XRF and Leco Data, all ratios are given as wt% ratios. Latitude (Paleolatidude) 25N Longitude (Paleolongitude) unknown Bathymetry/elevation sub-CCD approx 5000 ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_95-022 North Sea Basin Early Cretaceous Paleoceanography 14.0,54.0,14.0,54.00.0,54.0,0.0,54.090.0,54.0,90.0,54.0 2007-08-07T04:00:00Z Nannofossil assemblages and fine fraction stable isotopes from 4 localities in the North Sea Basin: TABLE1 Location: BGS Borehole, North Sea Latitude: 54o38.919'N Longitude: 0o14.509'E TABLE2 Location: ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NBP0304B_geophysics Nathaniel B. Palmer 0304B underway geophysics 172.17,-43.613,-156.804,71.3362 2003-08-21T00:00:00Z 2003-10-13T00:00:00Z 2007-07-20T04:00:00Z This data set contains underway geophysical data collected on cruise 0304B of the Nathaniel B. Palmer. This cruise went from Barrow, Alaska to Lyttelton, New Zealand via Dutch Harbor, Alaska, Honolulu, ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2006-077 Cretaceous Seawater Sulfur Isotopic Data -180.0,-90.0,180.0,90.0 2007-04-16T04:00:00Z The exogenic sulfur cycle is tightly coupled with the carbon and oxygen cycles, and therefore a central component of Earth's biogeochemistry. Here we present a high resolution record of the sulfur ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_94-031 Correlation of Geomagnetic Polarity Time Scales -180.0,-90.0,180.0,90.0 2007-02-16T05:00:00Z The files discussed in this dataset relate to a Data and Analysis paper submitted to Journal of Geophysical Research entitled "The Correlation of Geomagnetic Polarity Time Scales: An Internet Archive", ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NBP0304_geophysics Nathaniel B. Palmer 0304 geophysics 172.717,-43.6121,-157.867,53.4893 2003-02-07T00:00:00Z 2004-05-22T00:00:00Z 2006-12-18T05:00:00Z This data set consists of underway geophysical data from cruise 0304 on the Nathaniel B. Palmer. This cruise went from Lyttelton, New Zealand to Dutch Harbor, Alaska, via Honolulu, Hawaii. The data ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2003-034 Late Cretaceous and Early Paleogene Nutrient and Paleoproductivity Data -76.23,30.1,-76.23,30.1-76.36,30.05,-76.36,30.05-76.63,29.95,-76.63,29.95 2006-12-01T05:00:00Z We evaluate phosphorus (P) and biogenic barium (bio-Ba) as nutrient burial and export productivity indicators for the Late Cretaceous and early Paleogene, combining these with calcium carbonate ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_1999-031 Atlantic DSDP Lower Cretaceous Carbonate Geochemistry Data -75.0,0.0,-15.0,65.0 2006-11-20T05:00:00Z Striking cyclic interbeds of laminated dark-olive to black marlstone and bioturbated white to light-gray limestone of Neocomian (Early Cretaceous) age, the Blake-Bahama Formation, have been recovered ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2005-084 Albian to Eocene Atlantic ODP Leg 207 Foraminiferal Stable Isotope Data -54.35,9.45,-54.35,9.45-54.73,9.43,-54.73,9.43-54.55,9.27,-54.55,9.27 2006-11-14T05:00:00Z We report oxygen and carbon stable isotope analyses of foraminifers, primarily planktonic, sampled at low resolution in the Cretaceous and Paleogene sections from Sites 1257, 1258, and 1260. Data ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2005-085 Demerara Rise Cretaceous and Paleogene Mg/Ca Data -54.35,9.27,-54.35,9.45 2006-11-10T05:00:00Z The data are Mg/Ca and Al/Ca ratio values determined by inductively coupled plasma mass spectrometry (ICP-MS)and Mg/Ca values determined by secondary ion mass spectroscopy (SIMS). The samples are ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NOAA_NCDC_PALEO_2006-071 Falkland Plateau DSDP511 Cretaceous Foraminiferal Stable Isotope Data -46.97,-51.47,-46.97,-51.47 2006-11-10T05:00:00Z Carbon and oxygen stable isotope ratios for Cretaceous planktonic and benthic foraminifera, DSDP Site 511, present location: 51 00.28S, 46 50.30W These data expand the isotope record published by ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_OFR_2005_1144 Huminite Reflectance Measurements of Paleocene and Upper Cretaceous Coals from Borehole Cuttings, Zavala and Dimmit Counties, South Texas -107.31,25.19,-92.85,37.14 2006-08-29T04:00:00Z The reflectance of huminite in 19 cuttings samples was determined in support of ongoing investigations into the coal bed methane potential of subsurface Paleocene and Upper Cretaceous coals of South ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_OFR_2005_1331_NCR Geologic map of the national parks in the National Capital region, Washington, D.C., Virginia, Maryland, and West Virginia (USGS_OFR_2005_1331) -77.3,38.65,-76.8,39.0 2006-08-16T04:00:00Z More than 51,000 acres within the National Capital Region (NCR) are administered by the National Park Service (NPS). These parks consist of parkways, trails, statues, monuments, memorials, historic ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CDA_AR_GEO_GEOMAP_MARAMBIO Geological Map of Marambio Island (Seymour Island) -56.92,-64.33,-56.57,-64.21 2000-01-01T00:00:00Z T00:00:00Z 2006-06-05T04:00:00Z The Cretaceous-Paleogene sequence on Seymour Island has been mapped in terms of four previously named units: the Lopez de Bertodano Formation (Cretaceous-Paleocene), the Sobral Formation (Paleocene), ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_MAP_MF-2352 Geologic map of the Tetilla Peak quadrangle, Santa Fe and Sandoval Counties, New Mexico -106.25,35.5,-106.125,35.625 2005-11-03T05:00:00Z The purpose of this mapping was to determine the bedrock geology that would control or impact ground-water flow from the Espanola basin into the Santo Domingo basin. As it is a multi-purpose geologic ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CDA_AR_PICTA-17-2004-BIOSTRATIGRAPHY-GG-JRI UPPER APTIAN TO UPPER ALBIAN BIOSTRATIGRAPHY OF THE GUSTAV GROUP. AN INTEGRATED STUDY OF THE SEQUENCE EXPOSED IN THE JAMES ROSS ISLAND, ANTARCTICA -180.0,-90.0,180.0,-62.83 2005-11-03T05:00:00Z ENGLISH The investigations will be carried out on the cretaceous outcrops (Aptiano superior-Albiano), Gustav Group, James Ross Island, Antarctic. The stratigraphic sequence and the fossiliferous ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CDA_AR_PICTA-33-2004-UPPER_CRETACEOUS_STRATIGRAPHY_JR_BASIN UPPER CRETACEOUS STRATIGRAPHY OF JAMES ROSS BASIN, ANTARCTICA -180.0,-90.0,180.0,-62.83 2005-11-03T05:00:00Z ENGLISH Establishment of a reference stratigraphic and chronologic framework for the James Ross Basin on the basis of the distribution of the ammonite faunas. Sedimentology and paleoenvironments. ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NAVDAT The Western North American Volcanic and Intrusive Rock Database -177.0,15.0,-52.0,73.0 2005-10-26T04:00:00Z [From NAVDAT Frequently Asked Questions: What is NAVDAT?, "http://navdat.geo.ku.edu/NavdatHome/FAQ.cfm#WhatIsNAVDAT"] The NAVDAT project is compiling existing age, chemical, and isotopic data from ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]Paleogeography_SW_US Paleogeography of the Southwestern United States -124.3,30.86,-101.43,42.0 2005-10-25T04:00:00Z [From Paleogeography of the Southwestern US, by Ronald C. Blakey, "http://jan.ucc.nau.edu/~rcb7/paleogeogwus.html"] The images presented here show the paleogeography of the SW US from 1.8 billion ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_OFR_2005_1317 Compressional and Shear Wave Velocity Versus Depth in the San Francisco Bay Area, California: Rules for USGS Bay Area Velocity Model 05.0.0 -128.0,35.0,-118.0,42.0 2005-09-13T04:00:00Z This report summarizes and documents empirical compressional wave velocity (Vp) versus depth relationships for several important rock types in northern California used in constructing the new USGS ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CDA_AR_LATE_CRET-PALEO Biogeographic relationships between northern Antarctic Peninsula and southernmost South America during the Late Cretaceous-Paleogene. Project No. 12 2002 - 2004 -180.0,-90.0,180.0,-62.83 2003-12-01T00:00:00Z 2004-12-30T00:00:00Z 2005-08-17T04:00:00Z Project: LATE CRETACEOUS PALEOGENE > Biogeographic relationships between northern Antarctic Peninsula and southernmost South America during the Late Cretaceous-Paleogene. Project No.12 2002 -2004 ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CDA_AR_GEO_GUSTAV_GROUP_JRI Biostratigraphy and Paleontology of the Upper Cretaceous in James Ross Island. Project No. 13 2002-2004 -58.25,-63.83,-58.25,-63.83 2005-07-11T04:00:00Z The Project finalized in 2004 and will be continued by the Project PICTA-17-2004 (years 2004-2007) The project work comprises the study of the Gustav Group exposed on James Ross Island and consists ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CDA_AR_PICTA-29-2004-LAGOS_ROSS GEOLOGY AND PALAEONTOLOGY OF THE JAMES ROSS BASIN -57.6167,-63.9,-57.6167,-63.9 2005-07-11T04:00:00Z ENGLISH This multidisciplinary project is a continuation of the geological survey of the James Ross Basin, that for more than 15 years is been performed for some of the involved scientists. The project ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]IAA009 Micropaleontology Data for the Larsen Basin from the Instituto Antartico Argentino -90.0,-80.0,-45.0,-60.0 2005-06-28T04:00:00Z This micropaleontology data set from the Instituto Antartico Argentino Antarctic Data Base describes Late Cretaceous-Early Tertiary fossil diatoms studied in the Larsen Basin. http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CDA_AR_GEOL_PALEONTOLOGY_JRB Geology and palaeontology of the James Ross Basin. Project No. 4 2002-2004 -57.767,-63.867,-57.767,-63.867 2001-12-20T00:00:00Z 2004-12-30T00:00:00Z 2005-06-16T04:00:00Z This multidisciplinary project is included in the geological research performed during the last years on the James Ross Basin, Antarctica, by the IAA-DNA. According to this a 3 year working plan have ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]PALEOBIOLOGY_DB The Paleobiology Database -180.0,-60.0,180.0,80.0 2004-12-13T05:00:00Z The Paleobiology Database is a public resource for the scientific community. It has been organized and operated by a multi-disciplinary, multi-institutional, international group of paleobiological ... http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]01-95_02 Geochemestry of basic magmatism on Byers Peninsula, Antarctica -61.13,-62.4,-60.54,-62.34 1997-01-10T00:00:00Z 1997-01-30T00:00:00Z 1998-01-07T00:00:00Z 1998-01-07T00:00:00Z 2004-12-09T05:00:00Z In this field campaign 59 samples of volcanic and subvolcanic rocks were collected. Ten of these samples were analyzed via ICP at the Department of Geology, U. de Chile. The samples are subalkaline ...