The carbon sources and trophic position of the abyssal species Munidopsis alvisca and Neolithodes diomedeae are described on the basis of stable carbon and nitrogen isotopes. These two species occur in large abundance at the hydrothermal vents in the central Gulf of California. As domi- nant co...
The stable isotopes of organic carbon (OC) and nitrogen, contents of OC and nitrogen for roots, bark, leaves, flowers and fruits of various mangrove species from Kisakasaka (Zanzibar) and Bagamoyo (mainland Tanzania) are used to assess (1) if some mangrove species are capable of fixing ...
Info. Dioision, Ext. 5716 关键词: nuclear physics and radiation physics lithium 6 reactions pickup reactions magnesium 26 target magnesium 24 target oxygen 16 target carbon 13 target carbon 12 target boron 11 target boron 10 target DOI: 10.2172/7216383 年份: 2011 ...
Simultaneous Absorption of Carbon Dioxide and Nitrogen Dioxide into Aqueous 2-amino-2-methy-1-propanol reaction regimes of two gases, one of which reacts instantaneously, and then, the enhancement factor of NO by comparing the instantaneous rates of SO ... SW Park,DW Park,KJ Oh,... - 《...
Natural abundant isotopes of carbon and nitrogen are frequently used to elucidate food webs and trace energy flows in aquatic ecosystems. Seasonal events such as leaf fall and algal blooms can influence temporal patterns and hence also affect interpretations of isotope data. This study examined such ...
Two pulses of oceanic environmental disturbance during the Permian-Triassic boundary crisis. Earth Planet. Sci. Lett. 443, 139-152.Two pulses of oceanic ... J Shen,Q Feng,TJ Algeo,... - 《Earth & Planetary Science Letters》 被引量: 21发表: 2016年 Changes in the global carbon cycle occu...
Time-scaled carbonate carbon isotopes exhibit two gradual major shifts across the PTB at Meishan, and these are duplicable elsewhere around the Tethys Ocean. The two shifts are associated with two episodes of enhanced terrestrial weathering indicated by an increased abundance of 13C-enriched moreta...
Stable carbon and nitrogen isotopes in lake plankton and seston: variability among 10 fractions, two seasons, and two lakesPyhjrvi, located in the centre of an intensive agricultural area in southwest Finland, is an example of a lake suffering from eutrophication. The lake has been intensively ...
Evidence of continuous speleothem growth at one site suggests that depression of the local treeline was limited to 600700 m below its present altitude, throughout the last 31,000 years. 展开 关键词: New Zealand Quaternary climate oxygen and carbon isotopes speleothem climate records Subtropical ...
Over the past eight hundred thousand years, glacial–interglacial cycles oscillated with a period of one hundred thousand years (‘100k world’1). Ice core and ocean sediment data have shown that atmospheric carbon dioxide, Antarctic temperature, deep ocean temperature, and global ice volume correlat...