Open AccessTibetan Magmatism Database
Author(s) -
Chapman James B.,
Kapp Paul
Publication year - 2017
Publication title -
geochemistry, geophysics, geosystems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.928
H-Index - 136
ISSN - 1525-2027
DOI - 10.1002/2017gc007217
Subject(s) - magmatism , batholith , geology , igneous rock , terrane , database , geochemistry , continental arc , mesozoic , table (database) , pluton , earth science , paleontology , tectonics , computer science , structural basin
A database containing previously published geochronologic, geochemical, and isotopic data on Mesozoic to Quaternary igneous rocks in the Himalayan‐Tibetan orogenic system are presented. The database is intended to serve as a repository for new and existing igneous rock data and is publicly accessible through a web‐based platform that includes an interactive map and data table interface with search, filtering, and download options. To illustrate the utility of the database, the age, location, and ɛHf t composition of magmatism from the central Gangdese batholith in the southern Lhasa terrane are compared. The data identify three high‐flux events, which peak at 93, 50, and 15 Ma. They are characterized by inboard arc migration and a temporal and spatial shift to more evolved isotopic compositions.