搜索结果: 1-12 共查到“知识库 地球科学总论 Records”相关记录12条 . 查询时间(0.107 秒)
The identification of a solar signal in climate records of the last 500 years using proxy and model-based analysis and the implications for natural climate variability
Satellite instruments car the solar constant solar energy output climate the climate warming
2014/10/22
There has been confirmation in the last two decades, through instrumental measurements onboard satellites, that the 'solar constant' does, as has long been hypothesized, vary. While there is no consen...
Lacustrine Records of Holocene Climate and Environmental Change from the Lofoten Islands, Norway
Holocene lake sediment Lofoten Islands Norway paleoclimate tephrochronology
2014/10/22
Lakes sediments from the Lofoten Islands, Norway, can be used to generate well resolved records of past climate and environmental change. This dissertation presents three lacustrine paleoenvironmental...
Calcareous Nannofossil Records Of Miocene Sea Level At The Marion Plateau (Northeastern Australia); And Pliocenepleistocene Formation Of Cold Water Carbonate Mounds (North Eastern Atlantic Continental Margin),
Earth sciences Carbonate mounds Biostratigraphy Calcareous nannfossils Marion Plateau Miocene Sea level Sequence stratigraphy
2014/10/22
The revised age models for the upper Oligocene to middle Miocene interval of the Marion Plateau have been used to identify eleven sequence boundaries and sequences sets at the Marion Plateau; MSA1.2 (...
Calcareous nannofossil records of Miocene sea level at the Marion Plateau (Northeastern Australia); and Pliocene-Pleistocene formation of cold water carbonate mounds (Northeastern Atlantic Continental Margin)
Paleontology. Marion plateau Antarctica Ice Surface water quality. The glacier events
2014/10/22
The revised age models for the upper Oligocene to middle Miocene interval of the Marion Plateau have been used to identify eleven sequence boundaries and sequences sets at the Marion Plateau; MSA1.2 (...
Arctic Lake Sediments As Records Of Climate Change Using Rock Magnetic Properties and Paleomagnetic Data
Earth sciences Arctic Lacustrine Lake el'gygytgyn Mineralogy Paleoclimate Rock magnetism
2014/10/22
Two lakes were studied in detail for rock magnetic properties: Lake El'gygytgyn, a crater lake formed 3.6Ma in the Far Eastern Russian Arctic, and Heimerdalsvatnet, a Holocene coastal lake located in ...
First Records of Late Devonian Entomozoacean Ostracods in North-western Turkey
Ostracods Entomozoacea Late Devonian Frasnian Turkey
2011/6/28
Entomozoacean ostracods (pelagic socalled fingerprint-ostracods) have recently been observed for the first time in Upper Devonian sediments of the Darlık B Section from the İstanbul region, ...
Environmental records from temperate glacier ice on Nevado Coropuna saddle, southern Peru
Environmental records temperate glacier ice Nevado Coropuna saddle
2010/1/28
We investigated past climate variability and the zonal short and long-range transport of air masses in tropical South America using chemical, isotopic and palynological signals from a 42 m-long ice co...
Historical records of coastal eutrophication-induced hypoxia
Historical records coastal eutrophication-induced hypoxia
2010/1/20
Under certain conditions, sediment cores from coastal settings subject to hypoxia can yield records of environmental changes over time scales ranging from decades to millennia, sometimes with a resolu...
Manganese content records seasonal upwelling in Lake Tanganyika mussels
Manganese content records seasonal upwelling Lake Tanganyika mussels
2010/1/14
Biogenic productivity of Lake Tanganyika is highly dependent on seasonal upwellings of cold, oxygen-depleted, nutrient-rich deep waters. We investigated the shell of freshwater bivalve Pleiodon spekii...
Constraints on oceanic N balance/imbalance from sedimentary 15N records
Constraints oceanic N balance/imbalance sedimentary 15N records
2010/1/14
According to current best estimates, the modern ocean's N cycle is in severe deficit. N isotope budgeting provides an independent geochemical constraint in this regard as well as the only means for pa...
Coupled model simulations of mid-Holocene ENSO and comparisons with coral oxygen isotope records
Coupled model simulations mid-Holocene ENSO coral oxygen isotope records
2010/1/25
The sensitivity of El Niño-Southern Oscillation (ENSO) to changes in mean climate is investigated for simulations of pre-industrial and mid-Holocene (6000 years before present) climate using th...
ENSO and interdecadal climate variability over the last century documented by geochemical records of two coral cores from the South West Pacific
ENSO and interdecadal climate variability geochemical records two coral cores the South West Pacific
2010/1/25
The south west Pacific is affected by climatic phenomena such as ENSO (El Niño Southern Oscillation) or the PDO (Pacific Decadal Oscillation). Near-monthly resolution calibrations of Sr/Ca, U/C...