P. G. H. Boswell D. Sc epub The Geology of the Country, Around Felixstowe Fr Ipswich (Classic Reprint)

By P. G. H. BOSWELL, D.S c, F.G.S., and I. S. DOUBLE, F.G.S. Plates I 3. SECTION I. INTRODUCTION. Glacial andR ecent Crag [M iocene andO ligocene] Eocene Chalk XTIE area to be visited by the Association at Whitsuntide and described in this pamphlet constitutes the north-eastern portion of theL ondon Basin and comprises those parts of south-eastern Suffolk and north-eastern Essex lying south of the R. A ide, north of the R. Colne, and east of the R. Brett. It thus includes theS uffolk andE ssex coastline from Aldeburgh toW alton-on-the-N aze. Throughout the greater part of geological time, East Anglia appears to have been a land area, and the key to its Tertiary geological history lies in its condition of instability during Cretaceous and post-C retaceous times. Older Palaeozoic rocks are reached in many borings at the moderate depth of about 1,000 ft. If the records of the borings made at Lowestoft, Culford (near Bury St. Edmunds), Stutton, Harwich and Weeley are combined, an idealised vertical section such as fig. I can be drawn. The Palaeozoic rocks are slates and mudstones of Cambrian (?), Ordovician (?) andS ilurian (?) age, the few fossils found being of little determinative value. These rocks are overlain by Gault in south-eastern Suffolk and northeastern Essex and by Lower Greensand in northern and northeastern Suffolk. The Old Red Fig, I. I deal Vertical Section showing the Geological Succession in East A nglia. Scale :500 feet to i inch. The breaks in the succession are not drawn to scale. They would, of course, be much greater. Reproduced by permission of the Council of the Ipswich and District Field Club.(Typographical errors above are due to OCR software and don't occur in the book.)About the Publisher Forgotten Books is a publisher of historical writings, such as: Philosophy, Classics, Science, Religion, History, Folklore and Mythology.Forgotten Books' Classic Repri