Puursüdamiku võtmine on üks meetod kivimi- ja setteproovide kogumiseks geoloogilisteks uuringuteks. Selleks on projekteeritud keskavaga koristuspuur, mille abil puurmasin lõikab puuraugu ja südamikuproovid sisenevad sellesse auku – koristustünni.
Coring is one method of collecting rock and sediment samples for geological research. A coring drill bit is designed with a central opening, around which the drill bit cuts the borehole, and the core samples enter this hole, into a special chamber – a coring barrel.
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