Other formats

    Adobe Portable Document Format file (facsimile images)   TEI XML file   ePub eBook file  

Connect

    mail icontwitter iconBlogspot iconrss icon

Victoria University Antarctic Research Expedition Science and Logistics Reports 1978-79: VUWAE 23

Technique of taking cores

Technique of taking cores

A suitable site, with exposed weathered bedrock is selected. This often requires much clearing with a geological hammer. It is then cored to a depth of approximately 100 mm. The orientation of the sample is measured and recorded (in our case the dip and strike of the top surface). This is done by inserting in the hole a tube (Plate XVIII) with an adjustable plane table. The table is levelled and the strike measured, preferably with a sun compass, but at least with a magnetic compass. The sample is then removed, marked and bagged. Even under good conditions in temperate climes, two operators take about 10 minutes per core.