Isotopic Paleotemperatures: Discussion
نویسندگان
چکیده
منابع مشابه
Isotopic paleotemperatures: discussion.
In a recent review of the application of oxygen-isotope temperature analyses and of cross-correlation methods to deep sea cores, Emiliani (1) proposed (i) a generalized temperature curve for the surface waters of the central Caribbean Sea and (ii), a curve correlating thickness of certain core stages from the Caribbean and the equatorial Atlantic with ages of summer insolation minima at 65°N. T...
متن کاملThe brunhes epoch: isotopic paleotemperatures and geochronology.
Oxygent isotopic analysis of a long piston core from the western equatorial Pacific has produced a record for the entire Brunhes epoch. This record can be correlated point by point with the isotopic records of previously analyzed Atlantic and Caribbean cores, leading to the construction of a generalized temperature curve for the entire Brunhes epoch.
متن کاملWarmer paleotemperatures for terrestrial ecosystems.
Floras of predominantly wet-soil environments show a greater than expected proportion of toothed leaves, affecting the outcome of leaf physiognomically based temperature estimates. New analyses of foliar physiognomy of plants growing in predominantly wet soils in modern forests suggest that current methods of inferring paleotemperatures from fossil floras yield underestimates of 2.5-10 degrees ...
متن کاملMartian surface paleotemperatures from thermochronology of meteorites.
The temporal evolution of past martian surface temperatures is poorly known. We used thermochronology and published noble gas and petrographic data to constrain the temperature histories of the nakhlites and martian meteorite ALH84001. We found that the nakhlites have not been heated to more than 350 degrees C since they formed. Our calculations also suggest that for most of the past 4 billion ...
متن کاملDiscussion Discussion Discussion Discussion Discussion Forum
Computing with words (CWW) means different things to different people. This article is the start of a position paper, written by some of the members of the CIS Fuzzy Systems Technical Committee Task Force on CWW, that answers the question “What does CWW mean to me?” 1 Chairman of the CWW task force. All of the other authors are members of this task force. 2 This is a task force of the Fuzzy Sys...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 1967
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.157.3789.722