Christmas Island Old Drill Hole Clearing  

Authors / CoAuthors

Unknown

Abstract

In early 2011 PRL provided Geoscience Australia with the Old Drill Hole Clearing dataset. This dataset shows the location of old drill lines cleared through the rainforest on Christmas Island. Drill lines were cleared to test the land for phosphate deposits and were cleared from the 1960Âs through to the 1970Âs, before Phosphate Resources Limited (PRL) began mining on the island. No clearing of primary rainforest has occurred under PRL. This dataset can be combined with the Pre-PRL Clearing (pre_prl_clearing.shp) data to give a realistic representation of all cleared areas on the island. The dataset can be accessed from the CIGIS CD from the following path: C:\CIGIS\environment\old_dh_clearingextent_poly.shp

Product Type

dataset

eCat Id

81813

Contact for the resource

Keywords

• GIS Dataset

• AU-ACT

Australian and New Zealand Standard Research Classification (ANZSRC)

• Earth Sciences

• Published_Internal

Publication Date

2011-01-01T00:00:00

Creation Date

Security Constraints

Australian Government Security ClassificationSystem    

Classification - unclassified

Legal Constraints

Creative Commons Attribution 4.0 International Licence    

Access - restricted

Use - license

Status

Purpose

Maintenance Information

asNeeded

Topic Category

geoscientificInformation

Series Information

Lineage

The Old Drill Hole Clearing dataset has been developed from the Peg and Line grid. Khairin Amin and James Keogh from PRL used Surpac to create a road outline 7 m wide (this is the estimate of two dozer D6 blades widths) along each of the previous drill lines. They were then stitched together and made into a polygon.

Parent Information

Extents

[-10.5667, -10.4167, 105.5333, 105.7167]

Reference System

Spatial Resolution

Service Information

Associations

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Source Information

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