Combined U-Pb zircon geochronology & Lu-Hf analysis of Jurassic-Cretaceous volcanics and sandstones from the Lord Howe Rise and Queensland Plateau, Australia (Old ID 22185)

Australia-New Zealand International Ocean Discovery Program Consortium
Role

Principal Investigator

Description

We prosed to combine zircon geochronology on putative Cretaceous volcanics reported in the DSDP Leg 21-207 and combine this with more ambitious dual Lu-Hf isotope and U-Pb isotope analysis on detrital zircons collected from a suite of Cretaceous and Paleogene sedimentary rock samples in cores from DSDP Leg 21-206, 207, 208 and 209. This approach is designed to identify the distribution of ages and geochemical signatures associated with earlies Cretaceous-Jurassic age detrital zircons (and volcanics) in order to better understand the timing of Cretaceous-Jurassic volcanism, the possible provenance of Cretaceous-Jurassic volcanic sources and to glean a better understanding of the nature of the magmatism during the Jurassic and Early Cretaceous along eastern Australia.

Date

01 Aug 2015 - 31 Dec 2016

Project Type

GRANT

Keywords

IODP;geochemistry;Detrital Zircon;Sedimentology

Funding Body

Australia-New Zealand International Ocean Discovery Program Consortium

Amount

10000

Project Team

Rob Holm;Carl Spandler