Klaas Van Der Borg

Biographic Data

ID4131158
NAMEKlaas Van Der Borg
GIVEN NAMESKlaas
FAMILY NAMEVan Der Borg
SIGNATUREVAN DER BORG K
AFFILIATIONSUtrecht University
ORCID0000-0002-5999-2804
VERIFIEDYes
TOTAL WORKS25
TOTAL CITATIONS117
WORKS AS AUTHOR25
WORKS AS EDITOR0
FIRST PUBLICATION YEAR1986
LATEST PUBLICATION YEAR2009
H-INDEX6

  • Dating Charred Soil Organic Matter

    Open AccessEileen Eckmeier, Klaas Van Der Borg et al.ARTICLERadiocarbon2009Cited by: 4References: 32

    Radiocarbon dating of charcoal in soils is commonly used to reconstruct past environmental processes. Also microcharcoal that is chemically isolated from soil organic matter by high-energy UV photo-oxidation can be dated with 14 C accelerator mass spectrometry (AMS). We compared the 14 C AMS ages of 13 pairs of hand-picked macrocharcoals and microcharcoal samples separated via the UV oxidation method; both charcoal fractions were taken from the s…

  • Further Radiocarbon Dates from the Catacombs of St. Callixtus in Rome

    Open AccessLeonard V Rutgers, Klaas Van Der Borg et al.ARTICLERadiocarbon2007References: 14

    This paper reports a further chronological assessment of the Christian catacombs of Rome by radiocarbon-dated organic materials in the so-called Liberian region of the catacombs of St. Callixtus on the Appian Way. 14 C dates of various types of organic material are discussed and related to ages derived from numismatic evidence and epigraphic remains. The results show that this area of the catacombs of St. Callixtus is older than assumed by previo…

  • The effect of climate variability on pollen productivity, AD 1975-2000, recorded in a Sphagnum peat hummock

    Open AccessPer Sjögren, Jacqueline F N Van Leeuwen et al.ARTICLEThe Holocene2006Cited by: 1References: 7

    Pollen accumulation rates and pollen percentages from a Sphagnum peat hummock in the Jura Mountains were used to determine past pollen deposition. Post-bomb calibrated radiocarbon dates allowed estimations of annual variability in pollen productivity AD 1975-2000. Percentages of abundant taxa were modified (downweighted) to reduce the influence of plant cover, mean pollen productivity, and interdependence of the variables. Significant correlation…

  • Climate and pre‐Columbian settlement at Anse à la Gourde, Guadeloupe, Northeastern Caribbean

    Open AccessC Beets, C J Beets et al.ARTICLEGeoarchaeology2006Cited by: 13

    The authors present a reconstruction of precipitation, seasonality, and vegetation cover over the period from 200 cal yr B.C. to 1600 cal yr A.D. for the archaeological site of Anse à la Gourde, Guadeloupe, based on the oxygen and carbon isotope composition of accelerator mass spectrometry (AMS) 14 C‐dated aragonitic shells of the landsnail Bulimulus guadaloupensis. The results show that the Late Cedrosan Saladoid population ( ̃400–800 cal yr A.D…

  • Holocene paleogeographies of the Palairos coastal plain (Akarnania, northwest Greece) and their geoarchaeological implications

    Open AccessA Vött, Helmut Brückner et al.ARTICLEGeoarchaeology2006

    Sediments from the Palairos coastal plain (Akarnania, northwest Greece) were studied to establish paleogeographical scenarios of Holocene landscape evolution. Near coast vibracore profiles revealed regressive sedimentary sequences, the base of which is dominated by marine sand and/or lagoonal mud. The middle and upper parts of the sequences are made up of lacustrine mud and fine‐ to coarse‐grained alluvial deposits reflecting the increased activi…

  • Quantitative Determination by 14 C Analysis of the Biological Component in Fuels

    Open AccessIvo J Dijs, Eric van der Windt et al.ARTICLERadiocarbon2006Cited by: 11References: 8

    Radiocarbon analysis was performed by liquid scintillation counting (LSC) and accelerator mass spectrometry (AMS) to assess whether the content of biological components in hydrocarbon fuels could be derived. Different fuel mixtures were prepared containing bioethanol, fossil ethanol, and fossil gasoline. The specific 14 C activity of these mixtures was obtained from LSC measurements and directly related to the concentration of carbon originating …

  • Radiocarbon Dates from the Catacombs of St. Callixtus in Rome

    Open AccessLeonard V Rutgers, Klaas Van Der Borg et al.ARTICLERadiocarbon2005Cited by: 1References: 2

    This paper reports the first chronological assessment of the Christian catacombs of Rome by radiocarbon dating. The organic materials dated were found in a set of burial rooms in the so-called Liberian region of the catacombs of St. Callixtus on the Appian Way. 14 C dating of small samples by accelerator mass spectrometry (AMS) represents a major advance over traditional archaeological dating methods used in catacomb archaeology; however, AMS 14 …

  • Late Holocene Environmental Reconstruction of St. Michiel Saline Lagoon, Curaçao (Dutch Antilles)

    Open AccessBogumila B Klosowska, Simon R Troelstra et al.ARTICLERadiocarbon2004

    Two sediment cores collected from the saline lagoon St. Michiel on Curaçao (Dutch Antilles) preserve a ~5000-yr record of environmental change. Investigation of radiocarbon-dated sections by accelerator mass spectrometry (AMS) is based on faunal assemblage analyses, sediment mineralogy, and the interpretation of sedimentary facies. The cores recovered from different parts of the lagoon demonstrate different development. Initially, in the proximal…

  • Late-Quaternary savanna history of the Colombian Llanos Orientales from Lagunas Chenevo and Mozambique

    Juan Carlos Berrio, Henry Hooghiemstra et al.ARTICLEThe Holocene2002

  • Late-Quaternary savanna history of the Colombian Llanos Orientales from Lagunas Chenevo and Mozambique

    Juan Carlos Berrio, Henry Hooghiemstra et al.ARTICLEThe Holocene2002Cited by: 2References: 4

    A 7000-year pollen record of a 90 cm core from Chenevo (4°05'N, 70°21'W, 150 m alttitude) and a 3500-year pollen record of a 285 cm core from Mozambique (3°58 N, 73°03 W, 175 m altitude) both from the savannas of the Llanos Orientales, Colombia, are presented. The records show dynamics between open savanna (Poaceae, Cyperaceae), woody savanna (Byrsonima, Curatella, Didymopanax), palm swamp (Mauritia, Mauritiella), forest and gallery forest taxa. …

  • Radiocarbon Dates from the Jewish Catacombs of Rome

    Open AccessLeonard V Rutgers, Arie F M De Jong et al.ARTICLERadiocarbon2002Cited by: 5References: 10

    This paper reports on the first chronological assessment of the Jewish Catacombs of the ancient Rome performed by accelerator mass spectrometry (AMS) dating of small-size charcoal fragments scattered in the mortar used for sealing off the graves in the Villa Torlonia Catacomb complex. The significance of the obtained 14 C readings has been carefully evaluated by taking into consideration the known technologies of quicklime production during Roman…

  • Environmental change in the Colombian subandean forest belt from 8 pollen records

    Open AccessMichael Wille, Henry Hooghiemstra et al.ARTICLEVegetation History and…2001Cited by: 6

  • Conference Participants

    Open AccessAnita Aerts, Cees Alderliesten et al.ARTICLERadiocarbon1997Cited by: 1References: 1

    From the 16th International Radiocarbon Conference held in Gronigen, Netherlands, June 16-20, 1997

  • Contamination and Fractionation Effects in AMS-Measured 14 C/ 12 C and 13 C/ 12 C Ratios of Small Samples

    Open AccessCees Alderliesten, Klaas Van Der Borg et al.ARTICLERadiocarbon1997Cited by: 3References: 9

    In AMS measurements on small ( m 400 μg) carbon samples, an m -dependence has been noted for the 14 C/ 12 C and 13 C/ 12 C ratios that is due to the combined effect of contamination and fractionation. A simple formalism is presented to describe the phenomena and to correct measurements on unknowns for their effect

  • Conference Participants

    Open AccessGerald Aardsma, Mohan Abeyratne et al.ARTICLERadiocarbon1995

    This material was digitized as part of a cooperative project between Radiocarbon and the University of Arizona Libraries

  • CH 4 Emissions from Nuclear Power Plants in Northwestern Europe

    Open AccessRoos Eisma, Alex T Vermeulen et al.ARTICLERadiocarbon1995Cited by: 2References: 10

    We measured the 14 C content of atmospheric methane at a 200-m-high sampling station in The Netherlands. Combined with trajectories and a transport model, it is possible to estimate the 14 CH 4 emissions from nuclear power plants in northwestern Europe. We demonstrate here two different methods of analyzing the data: forward modeling and an inverse method. Our data suggest that the emissions from pressurized water reactors are 260 ± 50 GBq per GW…

  • Early Cotton in North Arabia

    Open AccessAlison Betts, Klaas Van Der Borg et al.ARTICLEJournal of Archaeological Science1994Cited by: 6

  • Dating Precolumbian Museum Objects

    Open AccessMark J Y Van Strydonck, Klaas Van Der Borg et al.ARTICLERadiocarbon1992Cited by: 2References: 5

    We have radiocarbon dated some Precolumbian artifacts. We have used both conventional beta counting and AMS to date textiles, bamboo from weaving looms, a feather carpet and straw from a clay mask. We discuss the particular problems in sample pretreatment

  • Radiocarbon Dating of Lime Fractions and Organic Material from Buildings

    Open AccessMark J Y Van Strydonck, Klaas Van Der Borg et al.ARTICLERadiocarbon1992Cited by: 26References: 5

    We have dated carbonate fractions and organic material from different types of mortar from two sites in Belgium. We demonstrate the difficulties in obtaining good dates from carbonate samples. We also discuss the need for new types of dating material when the mortar comes from contaminated and disturbed sites, where even charcoal can yield aberrant results

  • Accurate Dating of Organic Deposits by AMS 14 C Measurement of Macrofossils

    Open AccessTorbjörn E Törnqvist, Arie F M De Jong et al.ARTICLERadiocarbon1992Cited by: 21References: 27

    We made a comparative study of AMS 14 C ages of organic deposits (minerotrophic peats and gyttjas) and macrofossils in order to evaluate the magnitude of a number of sources of error that may be present in bulk sediment samples. The consistency of 14 C ages found for coexisting macrofossils suggests that they are unlikely to record disturbances. Some of our gyttja samples yielded an age 0.2–0.6 ka 14 C years too old due to hardwater effect. We al…

  • A Late Quaternary Stratigraphic Framework for Eastern Mediterranean Sapropel S1 Based on AMS 14 C Dates and Stable Oxygen Isotopes

    Open AccessS R Troelstra, G M Ganssen et al.ARTICLERadiocarbon1991Cited by: 2References: 12

    Detailed stable oxygen isotope analyses coupled with AMS 14 C measurements on an eastern Mediterranean sapropel S1 sequence indicate that adverse bottom conditions persisted for ca 8000 years. AMS dates on additional sequences show that complete bottom anoxia lasted for 300-800 years. The S1 event is not synchronous throughout the eastern Mediterranean, but started earlier in the deeper parts of the basin

  • Late Quaternary Pteropod Preservation in Eastern North Atlantic Sediments in Relation to Changing Climate

    Open AccessG M Ganssen, S R Troelstra et al.ARTICLERadiocarbon1991References: 11

    AMS 14 C measurements on pteropod shells from eastern North Atlantic deep-sea cores reveal distinct periods of aragonite preservation during the last 16,000 years. Most preservation spikes coincide with documented periods of climatic change on a scale of 2 × 10 1 to 2 × 10 3 years

  • The Timing of the Postglacial Marine Invasion of Kau Bay, Halmahera, Indonesia

    D M Barmawidjaja, A F M De Jong et al.ARTICLERadiocarbon1989

    Kau Bay Halmahera, Indonesia is a small marine basin that is separated from the adjacent SW Pacific Ocean by a shallow sill, 40m deep. Radiocarbon dating on piston cores in combination with a study on microfossils demonstrate that Kau Bay was a freshwater lake in Weichselian times. At 10,000 BP, the Bay became reconnected with the open ocean. It sill depth did not change in the intervening years, sea level at 10,000 BP stood 40m below the present…

  • Dating of the Upper Pleistocene Lithic Industry of Sardinia

    Gerard Klein Hofmeijer, C Alderliesten et al.ARTICLERadiocarbon1989Cited by: 2

    During an excavation of 1986 and 1987, a joint team from Utrecht, Siena and the Soprintendenza di Sassari e Nuoro, found a pre-Neolithic lithic industry in Corbeddu Cave, Oliena, Sardinia, which was dated to 8000–17,000 bp. The artifact typology is different from that of the mainland of the same period. The lithic and bone artifacts suggest an endemic isolated economy of the Upper Pleistocene in Sardinia

  • Fast and Complete CO 2 -to-Graphite Conversion for 14 C Accelerator Mass Spectrometry

    Open AccessGert Hut, H Göte Östlund et al.ARTICLERadiocarbon1986Cited by: 9References: 5

    With Fe powder as a catalyst, CO 2 is completely converted to graphite within 90 minutes. The reaction proceeds at 650°C with an excess of H 2 . The reaction rate is enlarged by forced circulation and by keeping the water vapor pressure very low. The graphite samples obtained, consisting of 5mg of carbon, almost immediately produce stable 12 C − currents of the order of 20–30μA in the sputter source of a Van de Graaff accelerator. The currents ca…