搜索结果: 1-14 共查到“地球科学总论 age”相关记录14条 . 查询时间(0.114 秒)
The natural abundance of 14C in total CO2 dissolved in seawater (DIC) is a property applied to evaluate the water age structure and circulation in the ocean and in ocean models. In this study we use t...
The implementation of the CLaMS Lagrangian transport core into the chemistry climate model EMAC 2.40.1: application on age of air and transport of long-lived trace species
chemistry climate model long-lived
2014/12/19
Lagrangian transport schemes have proven to be useful tools for modelling stratospheric trace gas transport since they are less diffusive than classical Eulerian schemes and therefore especially well ...
Deciphering the Age and Signifiance of the Cora Lake Shear Zone: Athabasca Granulite Terrane, Northern Saskatchewan
Deciphering the Age Significance the Cora Lake Shear Zone Athabasca Granulite Terrane Northern Saskatchewan
2014/10/21
Interpreting the tectonic significance of high strain zones requires detailed knowledge of the P-T-t-D history of rocks on either side and of tectonized rocks within the shear zone. In-situ monazite g...
As the last ice age was ending, about 13,000 years ago, a final blast of cold hit Europe, and for a thousand years or more, it felt like the ice age had returned. But oddly, despite bitter cold winter...
Determining the Relative Age of Fault Activity through Analyses of Gouge Mineralogy and Geochemistry: A Case Study from Vápenná (Rychleby Mts), Czech Republic
Crystalline Limestone Intersecting Faults Fault Gouge Relative Chronology
2013/3/6
The relative age of fractures can be determined through structural analyses in the field or through the detailed mineralogical (XRD) and chemical analyses (AAS method, volumetric, and gravimetric anal...
Needle age-related and seasonal photosynthetic capacity variation is negligible for modelling yearly gas exchange of a sparse temperate Scots pine forest
Needle age-related and seasonal photosynthetic capacity variation a sparse temperate Scots pine forest
2010/1/21
In this study, we quantified the predictive accuracy loss involved with omitting photosynthetic capacity variation for a Scots pine (Pinus sylvestris L.) stand in Flanders, Belgium. Over the course of...
Modern techniques and Old Red problems–determining the age of continental sedimentary deposits with 40Ar/39Ar provenance analysis in west-central Norway
Modern techniques Old Red problems continental sedimentary deposits 40Ar/39Ar provenance analysis
2009/12/3
Ages of continental 'Old Red Sandstone' (ORS) deposits in Norway have been notoriously difficult to obtain due to the paucity of fossil-bearing horizons. In general, 40Ar/39Ar ages from detrital mica ...
Age constraints on the late Caledonian (Scandian) deformation in the Major Bergen Arc,SW Norway
Age constraints late Caledonian deformation Major Bergen Arc
2009/12/3
The Ulven Syncline in the Bergen Arcs contains some of the youngest rocks involved in Caledonian orogenic deformation in West Norway. The pelitic Vaktdal Formation contains a Middle Llandovery (439-43...
Sedimentology,physical properties and age of mass transport deposits associated with the Marquês de Pombal Fault,Southwest Portuguese Margin
Sedimentology physical properties mass transport deposits Marquês de Pombal Fault
2009/12/3
The SW Iberian Margin is located at the convergence of the European and African Plates, where the largest magnitude earthquakes in Western Europe occur. Several active structures, such as the Marquês ...
Direct Rhenium-Osmium age of the Oxfordian-Kimmeridgian boundary,Staffin bay,Isle of Skye,U.K.,and the Late Jurassic time scale
Direct Rhenium-Osmium age Oxfordian-Kimmeridgian boundary Staffin bay Late Jurassic time scale
2009/12/2
Rhenium-Osmium (Re-Os) dating of black shale of the proposed Global Stratotype Section and Point (GSSP) for the Oxfordian-Kimmeridgian boundary, at Staffin Bay, Isle of Skye, U.K., yields an age of 15...
Mapping glaciers in Jotunheimen,South-Norway,during the Little Ice Age maximum
glaciers Jotunheimen Little Ice Age maximum
2010/2/4
The maximum glacier extent during the "Little Ice Age" (mid 18th century AD) in Jotunheimen, southern Norway, was mapped using remote sensing techniques. Interpretation of existing glaciochronological...
The Use of Sm-146 in Age Determinations.
Rapid reorganization in ocean biogeochemistry off Peru towards the end of the Little Ice Age
Rapid reorganization ocean biogeochemistry Peru Little Ice Age
2010/1/20
Climate and ocean ecosystem variability has been well recognized during the twentieth century but it is unclear if modern ocean biogeochemistry is susceptible to the large, abrupt shifts that characte...
Wind Shifts May Stir CO2 From Antarctic Depths--Releases May Have Speeded End of Last Ice Age—And Could Act Again（图）
Wind Shifts CO2 Antarctic Depths Last Ice Age
2009/12/10
Natural releases of carbon dioxide from the Southern Ocean due to shifting wind patterns could have amplified global warming at the end of the last ice age--and could be repeated as manmade warming pr...