(Cleveland Ironstone Member) - 2004

Towards the North side of Port Mulgrave at Brackenberry Wyke, the Cleveland Ironstone Member can be seen well exposed in a large landslip. The Blocks of Ironstone yield plant remains. The Formation is split into the Penny Nab Member and above this, the Kettleness Member.

(Grey Shale Member, exposed on foreshore) - 2004

On the foreshore exposed both north of the old harbour and the middle of Rosedale Wyke Bay, the Grey shale Member can be seen. Pockets of Belemnites and shells tend to be grouped together in small colonies.

(Mulgrave Shale Member) - 2004

South of the old harbour, the Mulgrave Shale Member can be seen in the cliffs, this is made up by the 'Jet Rock' which used to be mined heavily many years ago and the remains of the old jet harbour area are still seen today. It is also made up of the Bituminous Shales which can be seen exposed on the foreshore further South past the Rosedale Wyke bay, this is where the nodules of ammonites, reptiles and dinosaur remains come from.

SYSTEM / PERIOD / SERIES / STAGE					AGE (mya)
Jurassic	Late	Volgian	Portlandian		142 to 147
			Tithonian
					147 to 150
		Kimmeridgian		Late	150 to 154
				Early
		Oxfordian	Corallian		154 to 159.4
			Late Oxford Clay
	Middle	Callovian	Middle Oxford Clay		159 to 165
			Early Oxford Clay
			Kellaways
			Late Cornbrash
		Bathonian	Early Cornbrash		165 to 170
			Forest Marble
			Frome Formation
			Wattonensis Beds
			Fullers Earth
			Zigzag Beds
		Bajocian	Late Inferior Oolite		170 to 177
			Middle Inferior Oolite
		Aalenian	Early Inferior Oolite		177 to 180.1
			Scissum Beds
			Bridport Sands
	Early	Toarcian (Late Lias)			180 to 190
		Pliensbachian (Middle & Early Lias)			190 to 195
		Sinemurian (Early Lias)			195 to 201
		Hettangian (Early Lias)			201 to 205.7

Toarcian 190 - 195 MYA
FORMATIONS AND DEPOSITS			LOCATIONS
L A T E L I A S	Early Bridport Sands		Thorncombe Beacon West Bay
	Down Cliff Clay		Eype Golden Cap (Seatown) Thorncombe Beacon
	Junction Bed		Eype Thorncombe Beacon
	Blea Wyke Formation	Yellow Sandstone Member	Ravenscar
		Grey Sandstone Member	Ravenscar
	Whitby Mudsone Formation	Fox Cliff Sandstone Member	Ravenscar
		Peak Mudstone Member	Ravenscar
		Alum Shale Member	Kettleness Whitby Saltwick Bay Runswick Bay Sandsend Ravenscar
		Mulgrave Shale Member	Port Mulgrave Kettleness Whitby Saltwick Bay Runswick Bay Ravenscar
		Grey Shale Member	Port Mulgrave Kettleness Whitby Saltwick Bay Runswick Bay Ravenscar

Pliensbachian 190 - 195 MYA
FORMATIONS AND DEPOSITS			LOCATIONS
M I D D L E L I A S	Marlstone Rock
	Thorncombe Sands		Eype Thorncombe Beacon
	Margaritatus Beds
	Down Cliff Sands		Eype Thorncombe Beacon
	Eype Clay		Charmouth Eype Golden Cap (Seatown) Thorncombe Beacon
	Three Tiers		Charmouth Golden Cap (Seatown)
E A R L Y L I A S	Green Ammonite		Charmouth Golden Cap (Seatown)
	Belemnite Stone		Charmouth Golden Cap (Seatown)
	Belemnite Marls		Charmouth Lyme Regis
	Cleveland Ironstone Formation	Kettleness Member	Port Mulgrave Staithes Runswick Bay Kettleness
		Penny Nab Member	Port Mulgrave Staithes Runswick Bay
	Staithes Sandstone Formation		Staithes Ravenscar Robin Hoods Bay
	Late Redcar Mudstone Formation	Ironstone Shales	Staithes Robin Hoods Bay
		Pyritous	Robin Hoods Bay

1:250 000 Geological Map of Port Mulgrave Geological Maps are sold either Flat or Folded for Solid, or Seabed geology. Special editions may be available for certain locations. For a complete list click the link below. Click here to BUY ONLINE from our Store

1: 50 000 Geological Map of Port Mulgrave Geological Maps are sold either Flat or Folded for Solid, Drift or combined geology. Special editions may be available for certain locations. For a complete list of 1: 50 000 maps, click the link below. Click here to BUY ONLINE from our Store