海量图书期刊资源,随时随地畅享阅读乐趣
The Seasonal Climate of the Early-Middle Jurassic, Cleveland Basin, EnglandHelen S. Morgans, Stephen P. Hesselbo and Robert A. Spicer · PALAIOS · 1999
Controls on iron-isotope fractionation in organic-rich sediments (Kimmeridge Clay, Upper Jurassic, Southern England)Alan Matthews; Helen S. Morgans-Bell; Simon Emmanuel; Hugh C. Jenkyns; Yigal Erel; Ludwik Halicz · 2004
Quartz silt in mudrocks as a key to sequence stratigraphy (Kimmeridge Clay Formation, Late Jurassic, Wessex Basin, UK)Carolyn J. Williams; Stephen P. Hesselbo; Hugh C. Jenkyns; Helen S. Morgans-Bell · 2001