Essays about: "Oxygen Isotope Value"

Found 4 essays containing the words Oxygen Isotope Value.

1. 1. Exploring the physiological variables of oxygen isotope composition in chondrychthyan teeth

   University essay from Uppsala universitet/Institutionen för biologisk grundutbildning; Uppsala universitet/Institutionen för organismbiologi; Uppsala universitet/Evolutionsbiologi

   Author : Carlos Oliveira; [2019]
   Keywords : chondrichthyan; oxygen; isotope; fractionation; teeth; enameloid; dentine;

   Abstract : Since the discoveries of vertebrate bioapatite’s ability to record oxygen isotopecomposition of ambient seawater were made (Kolodny, 1983), oxygen isotopes have beenwidely used as a climatic and oceanographic proxy. The δ18OP aquatic vertebrate apatite isa function of the δ18Ow value of the ambient water, yet “vital effects” on the δ18OP compositionhave been reported previously (Venneman et al. READ MORE

3. 2. The Origin of the Gran Canarian Xenoliths

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Beatrice Jägerup; [2016]
   Keywords : Gran Canaria; Xenoliths; Oxygen Isotope Value; Thin Section Analysis; EPM;

   Abstract : Xenoliths are pieces from the surrounding bedrock, brought to the surface of the earth by host magma. On Gran Canaria, the largest island in the Canary Islands archipelago, strange xenoliths have been found. They are light in color, porous and very different from the basaltic magma carrying them. READ MORE

4. 3. Probing the Toba super-eruption: Insights from oxygen isotope geochemistry and geobarometry

   University essay from Berggrundsgeologi

   Author : David Budd; [2011]
   Keywords : super-eruption; oxygen isotopes; geobarometry; Toba; magmatic plumbing; caldera;

   Abstract : The Toba caldera located in north Sumatra, Indonesia, is the source of the largest volcanic eruption in the Quaternary (Rose & Chesner 1987). Its enormous volume of 2800 km3 has been a matter of debate for decades and it is still unclear where and how the Toba magma was assembled. READ MORE

5. 4. Zircon U-Pb, Hf and O isotope constraints on the growth versus recycling of continental crust in the Grenville orogen, Ohio, USA

   University essay from Lunds universitet/Geologiska institutionen

   Author : Andreas Petersson; [2010]
   Keywords : zircon; U-Pb; geochronology; Hf-isotopes; O-isotopes; Grenville; crustal growth; North-American craton; zirkon; Hf-isotoper; O-isotopeer; kontinenttillväxt; nordamerikanska kratonen; Earth and Environmental Sciences;

   Abstract : Detta arbetet har hanterat sex olika borrkärnor från den Prekambriska berggrunden i Ohio, USA. Denna berggrund är täckt med 800 – 5000 meter av Paleozoiska avlagringar och på grund av detta vet vi väldigt lite om den. READ MORE