Paleoproterozoic crustal growth in the Western Block of the North China Craton: Evidence from detrital zircon Hf and whole rock Sr-nd isotopic compositions of the Khondalites from the Jining Complex

Clicks: 1
ID: 292890
2008
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal

Ranked #3,081 of 8,486 articles by views in american journal of science

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 8,486 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Detrital zircons from the khondalites in the Western Block of the North China Craton were mainly derived from a 1.9 to 2.1 Ga Paleoproterozoic provenance. Most of the more than 200 detrital zircons analyzed in this study have positive initial ε~Hf~ values and a wide range of Hf depleted mantle model ages (T~DM~^C^) that range from 2.08 Ga to 2.74 Ga, with a peak at 2.24 to 2.40 Ga. The whole rock Nd isotopic analyses for the khondalite samples give quite uniform ^143^Nd/^144^Nd ratios from 0.511188 to 0.511858, corresponding to initial ε~Nd\ (2.10Ga)~ values ranging from -1.6 to +0.6. In contrast, Sr isotopic compositions of these samples are more varied, with initial ^87^Sr/^86^Sr ratios at 2.10 Ga ranging from 0.7017 to 0.7076. In the ε~Nd~ versus ^87^Sr/^86^Sr correlation diagram, most samples plot near the mixing hyperbola of the depeleted mantle and crust, with the contribution of depleted mantle about 65 to 75 percent. These results suggest that a large amount of juvenile materials from the depleted mantle was accreted to the Western Block at 2.1 Ga, a period of magmatic quiescence in many cratons of the world.
Reference Key
openalex_W2076845114 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Xiaoping Xia, Ming-Dao Sun, Guochun Zhao, Fu‐Yuan Wu, Pei Xu, J. Zhang, Yong He
Journal american journal of science
Year 2008
DOI
10.2475/03.2008.05
URL
https://ajs.scholasticahq.com/article/61751.pdf
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.