نتایج جستجو برای: upper record
تعداد نتایج: 302329 فیلتر نتایج به سال:
The precipitation climatology and the underlying climate mechanisms of the eastern Mediterranean, West Asia, and the Indian subcontinent are reviewed, with emphasis on upper and middle tropospheric flow in the subtropics and its steering of precipitation. Holocene climate change of the region is summarized from proxy records. The Indian monsoon weakened during the Holocene over its northernmost...
Parasites are common in modern ecosystems and are also known from the fossil record. One of the best preserved and easily recognisable examples of parasitism in the fossil record concerns isopod-induced swellings in the branchial chamber of marine decapod crustaceans. However, very limited quantitative data on the variability of infestation percentages at the species, genus, and family levels a...
A 81BO record from Dunde Ice Cap, located in the Qjlian mountains on the northeastern margin of the Tibetan Plateau, has been analyzed and interpreted. With an ice temperature of 7.3°C at a depth of 10 m and -4.7°C at the bottom of the ice cap, and an accumulation rate of400mma· l , the Dunde core has provided interesting results. The upper part of this core, core D-I, can be easily dated by a ...
BACKGROUND Over the last decades, there has been an increasing interest on the chronology, distribution and mammal taxonomy (including hominins) related with the faunal turnovers that took place around the Pliocene-Pleistocene transition [ca. 1.8 mega-annum (Ma)] in Europe. However, these turnovers are not fully understood due to: the precarious nature of the period's fossil record; the "non-co...
A 81BO record from Dunde Ice Cap, located in the Qjlian mountains on the northeastern margin of the Tibetan Plateau, has been analyzed and interpreted. With an ice temperature of 7.3°C at a depth of 10 m and -4.7°C at the bottom of the ice cap, and an accumulation rate of400mma· l , the Dunde core has provided interesting results. The upper part of this core, core D-I, can be easily dated by a ...
The voluminous 2.5 Ga banded iron formations (BIFs) from the Hamersley Basin (Australia) and Transvaal Craton (South Africa) record an extensive period of Fe redox cycling. The major Fe-bearing minerals in the Hamersley–Transvaal BIFs, magnetite and siderite, did not form in Fe isotope equilibrium, but instead reflect distinct formation pathways. The near-zero average dFe values for magnetite r...
Abstract The Asia–Pacific region suffered record rainfall in summer 2020, which was accompanied by the strongest Asian subtropical westerly jet (ASWJ) of past four decades. Meanwhile, COVID-19 pandemic spread rapidly around world, resulting an abrupt reduction emissions East Asia. Here, we investigate whether enhanced ASWJ induced plummeting aerosols contributed to record-breaking rainfall. res...
Chilapata rain-pool frog ( Minervarya chilapata ) was described in 2009 from the Reserve Forest of West Bengal, India. Here, we report occurrence M. for first time Morang district, Nepal, based on acoustic and morphological characters such as presence a distinct white line upper lip, small size (snout-vent length 18 to 26 mm), pointed snout dorso-lateral black patch. The nearest record Nepal Pa...
Quality management is very important for many manufacturing industries. Process capability analysis has been widely applied in the field of quality control to monitor the performance of industrial processes. Hence, the lifetime performance indexC L is utilized to measure the performance of product, where L is the lower specification limit. This study constructs a Bayesian estimator of C L under...
[1] We present high-resolution records of upper ocean temperatures derived from Mg/Ca ratios of surfacedwelling Globigerina bulloides and subsurface-dwelling Neogloboquadrina pachyderma sinistral and the relative abundance of N. pachyderma sinistral for the period 55–8 ka BP from NE Atlantic sediment core MD01-2461. Millennial-scale temporal variability and longer-term trends in these records e...
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