Apatite U-Th/He analysis of a transect across Antarctic Peninsula ...

• Main Author: Twinn, Gary
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Alexander Island; Apatite; Apatite U-Th/He thermochronology; Palmer Land; Event label; Sample ID; LATITUDE; LONGITUDE; Rock type; Aliquot; Minerals; Helium-4; Mass; Uranium; Thorium; Samarium; Grain, length; Grain, width; Sphere equivalent radius; alpha-ejection correction; Age; Europium; Comment; Rock sample; see description in data abstract; Calculated; Determined according to Farley et al. 1996; Antarctic; The Antarctic; Antarctic Peninsula; Farley; Antarc*; British Antarctic Survey
• Online Access: https://dx.doi.org/10.1594/pangaea.942483; https://doi.pangaea.de/10.1594/PANGAEA.942483

Apatite U-Th/He thermochronology data for a set of samples across Alexander Island and Palmer land on the Antarctic Peninsula. Data was collected to constrain the timing of uplift of the region of the southern Antarctic Peninsula and determine if the formation of a slab window beneath the region influences the formation of the mountain ranges in the region. Rock samples were collected during Antarctic expeditions between 1973 and 2001 and were stored in the British Antarctic Survey rock archive until requested in 2019. Samples form a transect across Alexander Island and the Antarctic Peninsula from 69.3°W to 62.8°W at an average latitude of 70.5°S. Data contains Helium, Uranium, Thorium and Samarium levels from individual Apatite grains for a set of samples as well as the size of each grain. Dataset contains calculated raw age and age corrected for alpha ejection. Corrected ages range from 12.6 to 78.6 Ma. Analyses were made at the Birkbeck/UCL London Geochronology Centre. Four to eight whole inclusion- and ...