Isotopic composition of strontium in sea water throughout Phanerozoic time

Details Isotopic composition of strontium in sea water throughout Phanerozoic time Isotopic composition of strontium in sea water throughout Phanerozoic time

Jan 1970

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1970gecoa..34..105p&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 34, Issue 1, pp.105-120

Computer Science

31

Scientific paper

Isotopic analyses of strontium in primary fossil carbonate reveal significant variations in Sr 87 / Sr 86 of sea water during the Phanerozoic. The strontium isotopic composition may have been uniform from the Ordovician through the Mississippian, with an average Sr 87 / Sr 86 of 0.7078. A subsequent decrease in this value into the Mesozoic is interrupted by two provisionally documented positive pulses in Sr 87 / Sr 86 --one in the Early Pennsylvanian and one in the Early Triassic. The lowest observed value (0.7068) occurred in Late Jurassic time, and this was followed by a gradual increase to 0.7075 in the Late Cretaceous and a more rapid increase through the Tertiary to 0.7090 for modern sea water. These variations are thought to be the result of a complex interplay of periods of intense volcanism and epeirogenic movements of the continents on a worldwide scale.

Affiliated with

Also associated with

No associations

Rating

Isotopic composition of strontium in sea water throughout Phanerozoic time does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Isotopic composition of strontium in sea water throughout Phanerozoic time, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Isotopic composition of strontium in sea water throughout Phanerozoic time will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1686434