3) The boundary between the oil shale seams and marl beds is characterized by abrupt changes in Sr isotopic composition in the marl beds having more radiogenic
Sr isotopic compositions compared to the oil shale seams.
Researchers have recorded declines ever since, in a pattern completely uncharacteristic of radiogenic
It is thus pertinent that the recently emerging evidence of a radiogenic
etiology for CLL derives mainly from incidence studies.
The dolomite problem: stable and radiogenic
Previous estimates of what scientists call radiogenic
heat are roughly the same as the new figure, but they were based on the inferences of Earth's chemical composition derived from analyses of meteorites, (http://news.
Twenty-three years after the catastrophe it is still too early to know if the whole spectrum of plant radiogenic
changes has been discerned.
Drishnaswami through clever use of natural radioactive and radiogenic
isotopes and selected elements have been able to investigate the details and determine the time scales of chemical scavenging and solute-particle interactions in the sea and ground waters, sedimentary processes on the sea and lake beds, growth and turnover of ferro-manganese deposits, river-ocean interactions and material transport through estuaries, air-sea gas exchange of CO2 and erosion of the Himalaya and the Deccan Traps on the chemical and isotopic evolution of the oceans and long term global change.
The isotope analyses reveal that the phosphate fertilisers have the lowest and most radiogenic
With the metric thus unchanging, there is no red-shifting or other energy loss to use up radiogenic
CHIEF scientist William Penney demanded insurance for radiogenic
diseases for staff in 1951 - but warned that the tests must still be kept secret.
Inhibition of radiogenic
mammary carcinoma in rats by estriol or tamoxifen.
radiological potential (relates to the probability of radiogenic
cancer mortality or morbidity due to internal or external radiation exposure)