WorldCat Identities

Grootes, Pieter M.

Overview
Works: 40 works in 53 publications in 4 languages and 130 library holdings
Genres: History 
Roles: Author, Contributor, Author of introduction, Collector, Other, Creator
Classifications: GN778.22.C9, 726.6094359110904
Publication Timeline
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Most widely held works by Pieter M Grootes
Die Ausgrabungen im Dom zu Osnabrück 1866 bis 2003 by Uwe Lobbedey( Book )

1 edition published in 2016 in German and held by 31 WorldCat member libraries worldwide

Der Osnabrücker Dom St. Petrus war die Keimzelle der Stadt und der letzte noch unerforschte sächsische Dom der Zeit Karls des Großen. Diese Lücke schließt der vorliegende Band, der die Befunde der 6 Bauphasen, die Bischofsgräber und die bemalten Wandputzfragmente präsentiert. Die Forschungen im Domumfeld folgen in einer zweiten Publikation. Bau I war ein ca. 10 x 20 m großer Apsidensaal, wohl über der Steinkirche einer Missionszelle des 8. Jhs, älteren Siedlungsresten und Gräbern mit Baumsärgen errichtet, der als Bischofskirche des 795-805 gegründeten Bistums diente. Bau II war eine sehr große Querhausbasilika mit Chorjoch, Apsis und zwei Türmen mit direkten Bezügen zu Reichenau und St. Gallen aus der Zeit vor 833. Bau III des 9./10. Jhs umfaßt Neubauten von Querhaus, Chorjoch und Apsis sowie einen Kryptenstollen. Periode IV bezeichnet die Erneuerung von Vierung und Chorjoch im späten 11. Jh., Bau V das romanische Westjoch der Zeit vor 1100. Phase VI brachte den 1227-1239 geweihten spätromanischen Dom hervor. Die Befunde zeigen, daß Osnabrück der Drehpunk und Angelpunkt für die norddeutsche Mission war und nicht Minden, wie früher angenommen
Thermal diffusion isotopic enrichment and radiocarbon dating beyond 50.000 years BP by Pieter Meiert Grootes( Book )

11 editions published in 1977 in 3 languages and held by 26 WorldCat member libraries worldwide

Kotare-Krogi pri Murski Soboti by Branko Kerman( Book )

3 editions published in 2011 in Slovenian and held by 12 WorldCat member libraries worldwide

Der Rhündaer Berg am Rande der Niederhessischen Senke Eine prähistorische Höhensiedlung und ihr Umfeld by Andreas Müller-Karpe( Book )

1 edition published in 2020 in German and held by 10 WorldCat member libraries worldwide

Za Raščico pri Krogu by Irena Šavel( Book )

2 editions published in 2010 in Slovenian and held by 8 WorldCat member libraries worldwide

Prag-Miškovice archäologische und naturwissenschaftliche Untersuchungen zu Grabbau, Bestattungssitten und Inventaren einer frühbronzezeitlichen Nekropole by Michal Ernée( Book )

1 edition published in 2015 in German and held by 3 WorldCat member libraries worldwide

Plateaus and jumps in the atmospheric radiocarbon record - Potential origin and value as global age markers for glacial-to-deglacial paleoceanography, a synthesis by M Sarnthein( )

1 edition published in 2019 in English and held by 2 WorldCat member libraries worldwide

Ungewöhnliche Probleme bei der 14C-Datierung organischer Komponenten und Fraktionen fluviatiler Sedimente aus der Aue der Weißen Elster bei Leipzig by Achim Hiller( )

1 edition published in 2003 in English and held by 2 WorldCat member libraries worldwide

Late Quaternary ice-rich permafrost sequences as a paleoenvironmental archive for the Laptev Sea Region in northern Siberia by Lutz Schirrmeister( )

1 edition published in 2001 in English and held by 2 WorldCat member libraries worldwide

Comparison of oxygen isotope records from the GISP2 and GRIP Greenland ice cores by Pieter Meiert Grootes( Book )

1 edition published in 1993 in English and held by 2 WorldCat member libraries worldwide

Thermal diffusion isotopic enrichment and radiocarbon dating beyond 500000 years BP by Pieter Meiert Grootes( Book )

1 edition published in 1977 in English and held by 2 WorldCat member libraries worldwide

Peak glacial 14 C ventilation ages suggest major draw-down of carbon into the abyssal ocean by M Sarnthein( )

1 edition published in 2013 in English and held by 2 WorldCat member libraries worldwide

Cliamtic significance of the Greenland ice core records by Pieter Meiert Grootes( Book )

1 edition published in 1994 in English and held by 2 WorldCat member libraries worldwide

Paleonutrient and productivity records from the subarctic North Pacific, supplementary data to: Gebhardt, Holger; Sarnthein, Michael; Grootes, Pieter Meiert; Kiefer, Thorsten; K?hn, Hartmut; Schmieder, Frank; R?hl, Ursula (2008): Paleonutrient and productivity records from the subarctic North Pacific for Pleistocene glacial terminations I to V. Paleoceanography, 23, PA4212 by Holger Gebhardt( )

in English and held by 1 WorldCat member library worldwide

Our study addresses fundamental questions of the mode and timing of orbital and millennialscale changes in the meridional overturning circulation (MOC) of the subarctic North Pacific. Particular concerns are the vertical mixing, the present and past abundance of nutrients in surface waters despite strong stratification, and the North Pacific - North Atlantic seesaw of oscillations in sea surface temperature (SST). We do this by generating and interpreting multiple records for glacial terminations I-V down two long piston cores, one each from the western and eastern subarctic Pacific. Chlorins and biogenic opal are proxies for surface water productivity; delta 13C of epibenthic foraminifera is a record of deepwater ventilation; and the delta 13C of N. pachyderma sin. is a tracer of nutrients in subsurface waters that extend up to the sea surface during times of vertical mixing. The degree of mixing is traced by pairing SST and delta 18O records of planktic surface and subsurface (pycnocline) dwellers. Tight age control is deduced from a suite of age-calibrated 14C plateau boundaries for Termination I, and benthic?18O, and geomagnetic events for the last 800 kyr. 14C paleoreservoir ages record the ages of surface and deep waters to uncover short-term changes in MOC over Termination I. We have defined a standard sequence of short-term productivity events for Termination I and subsequent interglacials, also evident during Terminations II to V over the last 450 ka. The peak-glacial regime of stable stratification and low productivity terminated, together with the end of ice rafting and melting, near 17 ka, 2000 yr after the onset of Termination I. Pulses of vertical mixing and incursion of warm surface waters from the subtropics followed. Convected young water masses finally penetrated down to 2350 m water depth after a further 1500 yr, at 14.5 ka, significantly improving bottom water ventilation through the late deglacial and earliest interglacial. Mixing with upwelled nutrients from the pycnocline induced shortterm maxima in algal production of chlorins and biogenic opal near 17-15 and 15-12 ka, respectively. Deglacial meltwater incursions in the Aleutian Current and silica input from North American rivers also promoted East Pacific productivity after 15.5 ka. Productivity decreased during the late deglacial and early interglacial, coeval with an exceptional peak in CaCO3 preservation caused by both low organic flux and well ventilated deepwater. Subsequently, low-salinity and cool surface waters and in turn, stratification were gradually restored. A second, opal-dominated productivity maximum marked the ends of interglacials. The deglacial pulses of vertical mixing around 17-11 ka imply an important contribution of the North Pacific to the coeval release of oceanic CO2 into the atmosphere and support the east-west seesaw model of climate change
Importance of Biospheric Co2 in a Subcanopy Atmosphere Deduced From 14C AMS Measurements( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

Benthic foraminifera abundance in ODP Leg 155 holes, supplementary data to: Maslin, Mark A; Vilela, Naja; Mikkelsen, Naja; Grootes, Pieter Meiert (2005): Causes of catastrophic sediment failures of the Amazon Fan. Quaternary Science Reviews, 24(20-21), 2180-2193 by Mark Maslin( )

in English and held by 1 WorldCat member library worldwide

The general Pleistocene architecture of the Amazon Fan has been reconstructed using sediment recovered by Ocean Drilling Program Leg 155. Huge regional mass-transport deposits (MTDs) make up a significant component of the Amazon Fan. These deposits each cover an area over 15,000 km**2 (approximately the size of Jamaica), reach a maximum thickness of 200 m, and consist of 5000 Gt of sediment. Benthic foraminiferal fauna analysis and sedimentology indicate that the MTDs originated on the continental slope, which is at least 200 km laterally and 1500 m above their present position. Each mass-failure event was formed by the catastrophic failure of the continental slope and has been dated and correlated with climate-induced changes in sea level. Studies of the benthic foraminiferal assemblages in the Amazon Fan has been essential to our reconstruction of the origin and cause of these failures. The MTDs contain rare shelf (Quinqueloculina cf. stalkeri, Brizalina aenariensis, Q. lamarckiana, and Pseudononion atlanticum) and dominant upper-middle bathyal species (cassidulinids and buliminids). We conclude that the MTD originated between 200 and 600 m water depth, approximately the same zone in which gas hydrates occur. We suggest that the glacial MTDs referred to as Deep Eastern MTD (35-37 ka) and Unit R MTD (41-45 ka) correlate with rapid drops in sea level which destabilized continental slope gas-hydrate reservoirs causing catastrophic slope failure. An alternative explanation is required for the deglacial MTDs referred to as Western and Eastern Debris Flows (13-14 ka) which occurred as sea level rose rapidly during the B?lling-Aller?d period. We suggest that the deglaciation of the Andes and the consequent enhanced sediment supply coupled with a shift of the depo-centre to the continental shelf, caused over-burdening and thus slope failure. Evidence for a 2 per mil negative d13C shift in both planktonic foraminifera and organic matter coeval with these failures suggest that whatever the cause, there was a large release of methane hydrate associated with each failure
Age determination and sedimentation rates of sediment cores in the Laptev Sea, supplementary data to: Bauch, Henning A; Kassens, Heidemarie; Erlenkeuser, Helmut; Grootes, Pieter Meiert; Thiede, J?rn (1999): Depositional environment of the Laptev Sea (Arctic Siberia) during the Holocene. Boreas, 28(1), 194-204 by H. A Bauch( )

in English and held by 1 WorldCat member library worldwide

The Holocene depositional setting of the Laptev Sea was studied using three marine sediment cores from water depths between 77 and 46 m. Based on sedimentary parameters (TOC content, delta13Corg, sedimentation rates) controlled by radiocarbon age models the palaeoenvironment of a strongly coupled river-shelf system was reconstructed since 11 ka BP. Caused by a transgressing sea after the last glaciation, all cores reveal progressive decreases in sedimentation rates. Using the sedimentary records of a core from the Khatanga-Anabar river channel in the western Laptev Sea, several phases of change are recognized: (1) an early period lasted until 10 ka BP characterized by an increased deposition of plant debris due to shelf erosion and fluvial runoff; (2) a transitional phase with consistently increasing marine conditions until 6 ka BP, which was marked at its beginning near 10 ka BP by the first occurrence of marine bivalves, high TOC content and an increase in delta13Corg; (3) a time of extremely slow deposition of sediments, commencing at 6 ka BP and interpreted as Holocene sea-level highstand, which caused a southward retreat of the depositional centres within the now submerged river channels on the shelf; (4) a final phase with the establishment of modern conditions after 2 ka BP
Radiocarbon AMS Dating of Pollen Extracted from Peat Samples by T. A Brown( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

Abstract : We present 14 C AMS measurements and discuss the extraction procedure used on pollen extracted from peat samples. Microscopic examination of the extracts shows that the procedure is sufficient to remove most non-pollen materials and results in an extract that is composed predominantly of pollen. The 14 C dates that we obtained for pollen extracts from peat samples associated with the Mazama Ash layer are consistent with the range of bulk-sample dates obtained by others in previous studies. The limited measurement time and resulting precision (± 100 yr) of these initial measurements restrict our ability to draw firm conclusions from a comparison of the pollen extract dates with previous bulk-sample dates. We intend to adjust our procedure to improve the rejection of non-pollen materials and to increase the precision of our 14 C measurements on pollen extracts from peat samples in future studies
 
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WorldCat IdentitiesRelated Identities
Alternative Names
Grootes, P. M.

Grootes, P. M., 1944-

Grootes, Pieter

Grootes, Pieter M.

Grootes, Pieter Meiert

Grootes, Pieter Meinert, 1944-

Pieter Meiert Grootes American physicist

Pieter Meiert Grootes Amerikaans natuurkundige

Pieter Meiert Grootes físicu estauxunidense

Pieter Meiert Grootes fizikan amerikan

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