Environmental controls on the distribution of neoselachian sharks and rays within the British Bathonian (Middle Jurassic)

Lateral variation within a hiatal-conden

Lateral variation within a hiatal-condensed bed and the controls on the formation and occurrence of berthierine ooids: a case study from the Middle Jurassic of NE England, UK

✍ M.E. Williams 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 459 KB

## Abstract Shallow‐marine sandstone and berthierinic, ooidal, sandy limestone form the Hackness Rock Member (HRM), a Callovian‐age hiatal‐condensed bed in NE England. The HRM was deposited in response to a rise in relative sea‐level. Apart from the major hiatal surfaces represented by two signific