Carpentaria Basin geological models derived from AusAEM (airborne electromagnetics)

\n## **Abstract** \nThe dataset was compiled by the Geological and Bioregional Assessment Program from source data referenced within the dataset and/or metadata. Regional Airborne Electromagnetics survey data (AusAEM) were used to estimate the depth and thickness of the Carpentaria Basin where it overlies the Beetaloo GBA region. Models derived from AEM data represent thickness and extent of clay rich lithologies within the Carpentaria Basin sequence and overlying Cenozoic (when present) rather than the whole of the Carpentaria Basin. Areas with clay rich lithologies would have tendency to impede recharge. For further information see Fact sheet 6 available from https://www.bioregionalassessments.gov.au/gba.\n\n\n## **Attribution** \nGeological and Bioregional Assessment Program\n\n\n## **History** \nThe geological surface models were created by interpolating point depth estimates from from AusAEM depth estimates for Beetaloo GBA) using ArcGIS. Models derived from AEM data represent thickness and extent of clay rich lithologies within the Carpentaria basin sequence and overlying Cenozoic (when present) rather than the whole of the Carpentaria Grids were interpolated using the Natural Neighbour methodology.

## **摘要**
该数据集由地质与生物区域评估计划（Geological and Bioregional Assessment Program）根据数据集中引用的源数据和/或元数据汇编而成。区域航空电磁测量数据（AusAEM）被用于估算卡奔塔利亚盆地（Carpentaria Basin）在比塔罗GBA区域（Beetaloo GBA region）之上的深度和厚度。基于AEM数据构建的模型代表了卡奔塔利亚盆地序列内富粘土岩性（clay rich lithologies）的厚度与分布范围，以及上覆的新生代地层（Cenozoic，若存在），而非整个卡奔塔利亚盆地。富粘土岩性区域具有阻碍补给的倾向。更多信息请参见第6号情况说明书，可从以下链接获取：https://www.bioregionalassessments.gov.au/gba。

## **归属**
地质与生物区域评估计划

## **历史**
地质表面模型是通过使用ArcGIS对比塔罗GBA区域的AusAEM深度估算点进行插值而创建的。基于AEM数据构建的模型代表了卡奔塔利亚盆地序列内富粘土岩性的厚度与分布范围，以及上覆的新生代地层（若存在），而非整个卡奔塔利亚盆地。网格采用自然邻域法（Natural Neighbour methodology）进行插值。