Marine geology at the World Court     

ROBERT S. WHITE 《Geology Today》1986,2(5):144-149

Huge areas of the world's seafloor are being carved up among the nations, ignoring scientific knowledge of the geology, geophysics and geomorphology of the seabed.  相似文献   

On the prediction of linear stochastic systems with a low-order model     

FAMING WANG  ROBERT SCOTT 《地球，A辑:动力气象学与海洋学》2005,57(1):12-20

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Comparison of accelerator and radiometric radiocarbon measurements obtained from Late Devesian Lateglacial lake sediments from Llyn Gwernan, North Wales, UK     

J. JOHN LOWE  STEPHEN LOWE  ALISON J. FOWLER  ROBERT E. M. HEDGES  TIM J. F. AUSTIN 《Boreas: An International Journal of Quaternary Research》1988,17(3):355-369

Accelerator mass spectrometry measures of the radiocarbon activity of various chemical fractions prepared from Late Devensian Lateglacial lake sediments from the site of Llyn Gwernan, near Cader Idris, North Wales are presented and assessed. These are compared with radiocarbon measurements obtained by radiometric (decay) counting which were reported earlier from the same site and are considered in the light of pollen-stratigraphic information. The potential advantages of accelerator radiocarbon measurements to the assessment of the chronology and correlation of Lateglacial lake sediments are evaluated.  相似文献   

A mixed-phase cloud scheme based on a single prognostic equation     

ANDRÉ TREMBLAY  ANNA GLAZER  WEI YU  ROBERT BENOIT 《地球，A辑:动力气象学与海洋学》1996,48(4):483-500

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On a mechanism for orographic triggering of tropical cyclones in the Eastern North Pacific     

JOSEPH A. ZEHNDER  ROBERT L. GALL 《地球，A辑:动力气象学与海洋学》1991,43(1):25-36

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Residual currents in tidally dominated, well-mixed estuaries     

ROBERT K. MCCARTHY   《地球，A辑:动力气象学与海洋学》1993,45(4):325-340

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The Earth Galleries: an inside view     

Head of Exhibition Research  Design  ROBERT M. BLOOMFIELD 《Geology Today》1997,13(3):96-96

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Timing of the last deglaciation in Lithuania   总被引：1，自引：1，他引：0  

VINCENT R. RINTERKNECHT  ALBERTAS BITINAS  PETER U. CLARK  GRANT M. RAISBECK  FRANÇOISE YIOU  EDWARD J. BROOK 《Boreas: An International Journal of Quaternary Research》2008,37(3):426-433

Boulders from the Grūda Moraine, which is associated with the maximum extent of the Scandinavian Ice Sheet (SIS) during the last glaciation, and the Baltija (also referred to as the South Lithuanian), the Middle and North Lithuanian moraines, which are associated with recessional stages of the SIS, were sampled for surface exposure dating using ¹⁰Be. By combining these data with existing radiocarbon ages, we developed a chronology for the retreat of the SIS margin in Lithuania. Our new ¹⁰Be ages suggest that the SIS margin began to retreat from its maximum extent at 18.3 ± 0.8 ¹⁰Be kyr. Based on a probable correlation of the Baltija Moraine with the Pomeranian Moraine in Poland, we infer that the Baltija Moraine was formed following a re-advance of the SIS margin. The ice margin retreated from the Baltija position at 14.0 ± 0.4 ¹⁰Be kyr. The SIS-margin retreat paused at least two more times to form the Middle Lithuanian Moraine at 13.5 ± 0.6 ¹⁰Be kyr and the North Lithuanian Moraine (tentatively correlated to the Pajūris Moraine) at 13.3 ± 0.7 ¹⁰Be kyr. Subsequent ice-margin retreat from the North Lithuanian Moraine represented the final deglaciation of Lithuania. Direct dating of these moraines better constrains the relation of ice-margin positions in Lithuania to those in adjacent countries as well as the SIS response to climate change.  相似文献   

Responsible Geographies: Co-oreating Knowledge in Aotearoa     

ROBERT MCCLEAN  LAWRENCE D. BERG  MICHAEL M. ROCHE 《New Zealand geographer》1997,53(2):9-15

We examine in this paper the potential for (reforming the relations of social scientific research in Aotearoa. Drawing upon our experience of undertaking historical geographical research with and for Ngati-Toa Rangatira, we argue for the need to develop responsible geographies in Aotearoa. We suggest that the metaphors of ‘crossing borders’ and ‘building structures’ might offer one route into the development of such a responsible geography.  相似文献   

Cross-stratified calcarenites from New Zealand: subaqueous dunes in a cool-water, Oligo-Miocene seaway   总被引：2，自引：0，他引：2  

ALEXIS S. ANASTAS  ROBERT W. DALRYMPLE  NOEL P. JAMES  CAMPBELL S. NELSON† 《Sedimentology》1997,44(5):869-891

Cross-bedded, cool-water, bioclastic limestones of the Te Kuiti Group on the North Island of New Zealand are composed primarily of bryozoans, echinoderms, and benthic foraminifers. Their prominent, large-scale, unidirectional cross-stratification is interpreted as produced by migrating subaqueous dunes on the floor of a 50–100 km wide, north-east-trending seaway in water depths of 40–60 m. These dunes are thought to have developed in response to strong, seaway-parallel, tidal currents combined with a north-east-directed, set-up or oceanic current. Cross-stratification is organized into four hierarchical levels: (1) cross-lamination; (2) first-order sets; (3) second-order sets; and (4) cross-stratified successions. The levels are based on increasing degrees of internal complexity. Distinct attributes such as internal organization, cross-set thickness, foreset shape, and lower bounding-surface shape are used to describe and interpret the cross-stratification. All these attributes are here integrated in a new and expanded classification of unidirectional cross-stratification that emphasizes flow and bedform dynamics rather than overall set shape. Individual cross-stratified successions are interpreted to have formed by dunes with varying sinuosity, superposition, and flow history, under conditions of different current strength but constant sediment production. Horizontally bedded successions are the result of robust, active dune fields that grew during times of vigorous sediment transport. Formset successions were produced from large compound dunes and are the expression of languid and decaying dune fields that developed during times of decreasing sediment transport. These decaying dunes were gradually smothered by continuously and locally produced bioclastic sediment. Formset cross-stratified successions are most likely to develop in carbonates, where the sediment is produced in place, than in terrigenous clastics where the sediment is imported.  相似文献