Magnetostratigraphy of Upper Cretaceous strata in Grand Staircase-Escalante National Monument, southern Utah: The Santonian-Campanian Stage boundary, reassessment of the C33N/C33R magnetochron boundary, and implications for regional sedimentation patterns
详细信息 查看全文
- 作者：L. Barry Albright IIIa ; lalbrigh@unf.edu" class="auth_mail" title="E-mail the corresponding author ; Alan L. Titusb
- 关键词：Grand Staircase-Escalante National Monument ; Western Interior Basin ; Magnetostratigraphy ; Santonian&ndash ; Campanian
- 刊名：Cretaceous Research
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：63
- 期：Complete
- 页码：77-94
- 全文大小：2031 K
文摘
- •
The Santonian−Campanian boundary occurs in a disconformity between the Straight Cliffs Formation and the Wahweap Formation.
- •
The C33r−C33n magnetochron boundary is adjusted upward from 79.9 Ma (GTS2012) to 78.91 Ma.
- •
Correlation in late Santonian-early Campanian time/facies across WIB supports eustatic influence on depositional patterns.
- •
Laramide tectonism was strongly overriding eustatic signatures in upper middle Campanian and younger rocks of the WIB.