The alkali syenite assemblage of Kunavaram, Khammam district, Andhra Pradesh in south-eastern India, comprises perthite syenite and nepheline syenite. The massive perthite syenite (locally grading to alaskite) is fringed on either side by foliated nepheline syenite, the latter developing composite gneisses along the contact zones with the country rocks. The syenites are essentially hypersolvus although the alkali feldspar, the dominant constituent of the rocks, shows varying degrees of unmixing and Al/Si order. The mafic constituents (e.g. sodic pyroxene, amphibole and biotite) are appreciably rich in ferrous iron. Mineralogical and chemical data suggest that the primary crystallization characteristics of the syenites were not totally obliterated during the post-magmatic history of the pluton.

Recent coastal erosion has revealed another chalky till above the Lowestoft Till and separated from it by bedded clays and sands. These have shown no evidence of contemporary life and, together with the newly discovered till, are assigned to the Lowestoft Stadial at this the type-section of the Anglian (Lowestoftian) Glacial Stage.

It is demonstrated that the Kvamshesten area of continental Devonian rocks has been thrust over an older basement. The movements are correlated with the Svalbardian phase.

A recent hypothesis concerning the age of orogenic deformation of the Skiddaw Slates in the English Lake District has proposed that the main slaty cleavage (S1) and superimposed subhorizontal crenulation-cleavage (S2) are of intra-Ordovician age. A study of the fabric of the aureole of the (end-Silurian) Skiddaw granite shows that the granite was emplaced towards the end of the D1 deformation phase, but before the formation of S2. These structures are therefore of broadly end-Silurian age, and evidence of an intra-Ordovician orogeny in this area is lacking.

The Lower Palaeozoic strata west of the Leinster Granite in eastern Ireland, normally referred to as Ordovician, are mainly a greywacke sequence which lithologically resembles undoubted Silurian rocks elsewhere to the north and west. A scanty fauna occurs which could be either Ordovician or Silurian.

Boreholes at, and seaward of, Lantern Marshes shed additional information on the Quaternary evolution of the Orford, Suffolk, area. The logs indicate:

(i) a more complex surface to the London Clay, which is shown to reach depths below those formerly thought;

(ii) the reality of the lower planation surface previously recorded. The surface is, however, cut across Scrobicularia and Butley (Red) Crag to a greater extent than anticipated. It proves that at least part, and probably all, of the −8.5 to −11 m surface is post Ludhamian.

(iii) a peat sample from −9.4 m indicates that relative mean sea level at 7010 B.P. was at approximately −10.7 m. The peat is overlain by shingle and confirms the residual shingle structures as later than that time.

The sand/matrix ratio technique is described and has been shown to provide a rapid method of correlating till units in the Cumberland lowland which belong to separate glacial phases. Basal tills have a relatively constant sand/silt-matrix ratio compared with flowage tills in the same locality.

Four species of calcareous microfossils whose systematic position is unknown occur in very small numbers in the English Gault (Middle and Upper Albian). They are associated with much more abundant coccoliths, and are believed to be the hard parts of planktonic organisms whose possible relationships are discussed, but cannot at present be determined.

Classical works on Indian stratigraphy described three stratigraphic units, viz., Subathu, Dagshai and Kasauli within the Tertiary sequence of Simla Hills, India. Present work shows that the above three units represent mostly intertonguing among three distinct lithofacies, respectively termed as green, red and grey facies depending upon the dominant shale colour. Environmental significance of each facies is discussed. A road log presenting evidences of facies intertonguing on the basis of sedimentary structures is described.