..., 175 Ma, 257 to 277 Ma and 394 to 453 Ma. It is concluded that they indicate the provenance of the first sample, from the Top Ashdown Sandstone member at Dallington in East Sussex, was almost entirely southerly, while that of the second, from the Netherside Sand member at Northchapel in West Sussex...

.... Lowry (1987) has reported the widespread occurrence of authigenic clay minerals including smectitic minerals and kaolin in the feldspar-poor sandstones of the Ashdown Formation, while Sladen (1980) reported authigenic kaolin from the Wessex Formation. In these sandstones the feldspars are often...

... = massive medium sandstone, ex.p. =exotic quartz and chert pebbles (to 7.5 mm). Top Ashdown Sandstone Member. W laneside N of Hastingford, Crowborough, Sussex (TQ 523258). B, Sand-filled interfan channel in medial zone. No pointbar deposits. Ardingly Sandstone Member. Pembury, Kent. C, D, F, G, Small flat...

... of the earlier Lower Old Red Sandstone (Siluro-Devonian), north of Milford Haven, southwest Dyfed (Wales) Geological Journal 1978 13 113 36 Allen P. Wealden petrology: the Top Ashdown Pebble Bed and top Ashdown Sandstone Quarterly Journal of the Geological Society of London 1949 104 257 321...

... with respect to the engineering design. The Wadhurst Clay Formation crops out a short distance to the west of the site, although is not mapped at surface within the site boundary, with the Ardingly Sandstone Member cropping out to the NE of the site ( Fig. 5b ). The Ashdown Formation is found within the wider...

...MARTIN BRASIER; LAURA COTTON; IAN YENNEY Abstract: Early Cretaceous amber resins with macroscopic inclusions are extremely rare, as are ambers with inclusions from the parent plant. Here, we report earliest Cretaceous amber resins found within alluvial soils of the Ashdown Formation near Hastings...

...Table 1. Field description of the sideritic ironstones Location Form Colour Thickness Occurrence Additional comments Cliff End (Pett Level) Broad and tabular, very hard Dark brown 10 to 15 cm Beneath the Cliff End Sandstone Part of basal beds which mark the junction...

... Adams, C. J. D. 1969. In: discussion of Bishop et al. 1969, 348. (see below). Allen P. Wealden petrology: the Top Ashdown Pebble Bed and top Ashdown sandstone Q. Jl geol. Soc. Lond 1949 104 257 321 Allen P. The Wealden environment: Anglo-Paris basin Phil Trans roy Soc...

... the Brownstown are the same as those found in the upper part of the Eagle Ford, just below the Austin chalk. These same sands can be traced in the wells from Hunt and Hopkins counties east to Bowie County, Texas. The writer has recently found Ostrea lugubris in sandstones outcropping at Woodland, also 2 miles...

... some 650 × 10 6 m 3 per annum (650 MCM a −1 ) or about 25% of the total groundwater abstraction ( Environment Agency 2006 ). The Permo-Triassic Sandstone is the largest, providing about 610 MCM a −1 , followed by the Lower Greensand, providing about 30 MCM a −1 , and the Hastings Group (Ashdown...

... abstraction of 68002x 103 m 3 per year, most of this water being for public water supply. Other important aquifers are the Bunter Sand- stone and Fell Sandstone with licensed abstractions of 5474 103 and 2182 103m 3 per year, respectively. The interrelationship between surface and groundwater sources...

... in the Weald Basin (Ashdown Formation, Hastings Group) are dominated by fine- to medium-grained fluvial channel sandstones and overbank mudstones, often termed the ‘Fairlight Clay' facies (e.g. Stewart 1981 ; Allen 1998 ). The overbank mudstones were exposed to periodic emergent and/or subaerial conditions...

... of the Wealden Basin, on strata of the Cretaceous Period, where the beds dip locally between 4° and 34° to the NE. The northern, low-lying, region of the site is underlain by strata of the Ashdown Formation. Moving southwards, ground levels rise up towards Castle Hill, which is underlain by strata...

... Typical yield Examples Moderate aquifer 1–6 l s −1 Tunbridge Wells Sand Ashdown Beds Corallian Bridport Sand Permian breccias (SW England) Fell Sandstone Good aquifer >6 l s −1 Crag Chalk Lower Greensand Sherwood Sandstone Permian sandstones...

... by four shallow structure holes, and a test well, Ashdown No. 1, was then drilled to 4,538 feet. This well began in Lower Cretaceous and penetrated Jurassic down to the base of the Inferior oolite. A small gas showing was encountered in the Corallian at 2,958 feet and a show of oil in Callovian sandstone...

... and coal-bearing beds with subordinate sandstone, at least partly of Jurassic age, and (3) the Blairmore Group, consisting of a basal conglomeratic member of unknown age overlain by sandstones with subordinate shales of Early Cretaceous (Aptian) age. The precise position of the Jurassic-Cretaceous contact...

...) carbonate minerals are absent, (4) the residence time of water is short. Low alkalinity groundwater is found in many sandstone lithologies including the Sherwood Sandstone (a major UK aquifer), many Lower Palaeozoic strata and granites. However, existing data for susceptible areas are insufficient to show...

... localities by fine sandstones and mudstones (units 3-6). The lower erosion surface at Mupe Bay (WB2 in Fig. 2) truncates the stratification in the underlying sandstone and is overlain by grey muds with lamination concordant to the erosion surface. This surface cannot be recognized unambiguously at Bacon Hole...

... tracksite (Lee Ness sandstone, Ashdown Formation, southern England) . Palaeogeography, Palaeoclimatology, Palaeoecology , 514 : 593 – 612 . doi: 10.1016/j.palaeo.2018.11.018 . Shillito , A.P. , and Davies , N.S. 2020 . The Tumblagooda Sandstone revisited: exceptionally abundant trace...