A core drill is a drill specifically designed to remove a cylinder of material, much like a hole saw. The material left inside the drill bit is referred to as the core.
Core drills are used frequently in mineral exploration where the coring may be several hundred to several thousand feet in length. The core samples are recovered and examined by geologists for mineral percentages and stratigraphic contact points. This gives exploration companies the information necessary to begin or abandon mining operations in a particular area.
Dataset Name | PI-Supplied Description | PI-Supplied Name |
---|---|---|
Raw coral extension, density, and calcification data from Castillo lab research in Belize, 2009, 2012, and 2015 | A pneumatic core drill or a hydraulic drill (Chicago Pneumatic COR 5 or CS Unitec model 2 1335 0010, 3.8 HP) with a 5 cm diameter diamond tipped core bit. Back reef S. siderea cores collected in 2015 were collected using a pneumatic drill with a 2.5 cm diameter diamond tipped core bit. | core drill |
Isotopic ratios d18O and d13C from coral mini core samples collected on Kiritimati in the Northern Line Islands in April of 2016 (RAPID Kiritimati project) | Nemo Powertools drill | |
Fall 2011 - Porewater Samples | Drill Core | |
Fall 2011 - Water Column Samples | Drill Core | |
Annual growth chronologies of Siderastrea siderea and Pseudodiploria strigosa on the Florida Keys Reef Tract, 2015-2016 | Used to collect coral cores. | CS Unitec model 2 1335 0010 hydraulic core drill |
Spring 2011 - Drill Core Methane | Drill Core | |
Spring 2011 - Master Data Sheet | Drill Core | |
Spring 2011 -Sediment Gas Concentrations and Stable Isotope Values | Drill Core | |
Spring 2012 - d13C and d2H Stable Isotope Composition | Collection Type: Point Water sampler (PWS), Grab Core, Gravity Core, Drill Core | Drill Core |
2012 Arctic Sediment/Permafrost Master | Collection Type: Drill core | Drill Core |
Spring 2012 - Turnover Rates | Collection Type: Gravity core; Drill core | Drill Core |
Sulfate triple oxygen isotope signatures in Messinian evaporite and barite from cores collected | Samples were drilled from each outcrop, and care was taken to remove weathered surface material (Evans et al., 2015). | Drill Core Samples |