Comment on "Heterogeneous Hadean Hafnium: Evidence of Continental Crust at 4.4 to 4.5 Ga" Journal Article uri icon

Overview

abstract

  • ; Harrison; et al; . (Reports, 23 December 2005, p. 1947) proposed that plate tectonics and granites existed 4.5 billion years ago (Ga), within 70 million years of Earth's formation, based on geochemistry of >4.0 Ga detrital zircons from Australia. We highlight the large uncertainties of this claim and make the more moderate proposal that some crust formed by 4.4 Ga and oceans formed by 4.2 Ga.;

publication date

  • May 26, 2006

has restriction

  • closed

Date in CU Experts

  • July 2, 2014 12:39 PM

Full Author List

  • Valley JW; Cavosie AJ; Fu B; Peck WH; Wilde SA

author count

  • 5

Other Profiles

International Standard Serial Number (ISSN)

  • 0036-8075

Electronic International Standard Serial Number (EISSN)

  • 1095-9203

Additional Document Info

start page

  • 1139

end page

  • 1139

volume

  • 312

issue

  • 5777