The sediments are compositionally mature to submature and classified as quartz
arenite to sub-litharenite.
The transfer of interests in P2304 from Europa and
Arenite to Egdon is subject to OGA approval.
The Lard Formation is mainly a calcite-cemented, fine- to medium-grained, well- to sub-rounded to sub-angular, 90 percent quartz
arenite of marine shoreface origin (Hickin and others, 2010).
Donaldson, A., and Hilowle, M.A., 2002, Organic mats, evaporite pseudomorphs and soft-sediment deformation in quartz
arenites of the Cambro-Ordovician Nepean Formation: GAC-MAC, Saskatoon 2002, Program with Abstracts, [http://gac.esd.mun.ca/gac_2002/search_abs/ sub_program.asp?sess=98&form=10&abs_no=73]
Sample Grain size Classification Sorting 1 0.063-0.125 Very fine sand Very well 2 0.063-0.125 Very fine sand Very well 3 0.063-0.125 Very fine sand Very well 4 0.063-0.125 Very fine sand Very well 5 0.038-0.063 Coarse silt Moderate 6 0.038-0.063 Coarse silt Moderate 7 0.038-0.063 Coarse silt Moderate Sample Grain size Dominant clast Description 1 0.063-0.125 60-70% quartz Quartz
arenite sand 2 0.063-0.125 60-70% quartz Quartz
arenite sand 3 0.063-0.125 60-70% quartz Quartz
arenite sand 4 0.063-0.125 60-70% quartz Quartz
arenite sand 5 0.038-0.063 60-70% quartz Quartz silt w/ shell and organic fragments 6 0.038-0.063 60-70% quartz Quartz silt w/ shell and organic fragments 7 0.038-0.063 60-70% quartz Quartz silt w/ shell and organic fragments
The sediments were affected by minor tectonism which ultimately led to the development of mature sandstones nomenclature as Quartz
arenite and Quartzose
arenite.
The magaripples occur on the upper bedding plane of a 35-cm thick, medium to coarse-grained quartz
arenite. This bed is both underlain and overlain by fine quartz sandstone, interbedded with micaceous siltstone beds, some of which preserve a well-developed Cruziana ichnofacies association.
The marine unit is characterized by a well-sorted, subrounded, low sphericity, fine-grained quartz
arenite representing sediments of the Princess Anne terrace.
From a geo-lithological point of view, the area is characterized by a wide heterogeneity of types: from clayey-calcareous substrata such as limestone, calcareous
arenite, silty marl, grey clayey marl, polychromatic marl and clay, to siliceous sandstone.
Fine-grained sandstone, quartz
arenite. Some is partially metamorphosed; quartz porphyroclasts in a partially recrystallized and aligned matrix and boundaries of some of the quartz porphyroclasts are breaking down.