This report describes the results of a micro-examination of five rock samples from the vicinity of the Rocket Range.

This report describes the results of a micropalaeontological examination of three rock samples from the vicinity of the Watheroo magnetic observatory.

Sulphuric acid may be produced not only from sulphides but also from calcium sulphate, by the use of which portland cement can be manufactured simultaneously with the acid. For the manufacture of sulphuric acid and portland cement from calcium sulphate and aluminium silicates, a mixture of anhydrite, clay, sand, and coke as a reducing agent is usually used. The chemical fundamentals underlying the manufacturing process are discussed in this report. The chemical reactions involved in the production process and the uses of raw materials are described at length.

This report describes the results of a micropalaeontological examination of samples taken from the depth of 1,260 to 1,480 feet down. This series is in continuation of that reported upon in Records 1948/065 and 1948/050.

This report describes the findings of a micropalaeontological examination of a small collection of limestones from Cape Range, Rough Range and Learmonth Aerodrome, Northwestern Australia. The collection is characteristic of the Tertiary deposits of the North West Basin. The majority of the limestones belong to the "f" stage (Middle Miocene) of the Netherlands East Indies "letter" classification but the shelly limestone from Rough Range, in the absence of zonal Miocene foraminifera is regarded as Lower Pliocene. A detailed palaeontological description of these samples is given in this report.

Legacy product - no abstract available

Legacy product - no abstract available

Legacy product - no abstract available

Legacy product - no abstract available

This report describes the results of a micropalaeontological examination of rock samples from Pidinga.