Winton outcrop polygons

\n## **Abstract** \nThe dataset was compiled by the Geological and Bioregional Assessment Program from source data referenced within the dataset and/or metadata. Areas of outcrop of Winton formation as defined by 1:1 million geological surface mapping. Contacts between Winton Formation and alluvium associated with minor drainage features were removed from the polygons, as in these areas the recent alluvium would be underlain by the Winton Formation. These polygons were then used as a template to modify the Cenozoic geological surfaces.\n\n\n## **Attribution** \nGeological and Bioregional Assessment Program\n\n\n## **History** \nOutcrops of Winton polygons were extracted from 1:1 million geological surface mapping. These polygons were then smoothed to remove boundaries that represent edge of alluvium in minor drainage lines. These smoothed polgons were used to clip the Cooper GBA model grid surfaces of the Cenozioc and Eyre and Glendower Formations. Clipping polygons are required as Eyre and Glendower formations cannot be present where the Winton Formation outcrops.

## **摘要**
本数据集由地质与生物区域评估计划（Geological and Bioregional Assessment Program）基于数据集内部及元数据所引用的源数据编制。其数据基于1:100万地质地表填图所界定的温顿组（Winton Formation）露头范围，剔除了温顿组与小型水系相关冲积层的接触边界——因该类区域的新近冲积层之下伏有温顿组。随后以处理后的多边形区域作为模板，对新生代地质地表进行修改。

## **归属说明**
地质与生物区域评估计划（Geological and Bioregional Assessment Program）

## **编制历史**
温顿组露头多边形提取自1:100万地质地表填图数据。随后对这些多边形进行平滑处理，以移除代表小型水系中冲积层边界的线条。经平滑后的多边形被用于裁剪库珀GBA模型的新生代、艾尔组（Eyre Formation）及格伦多沃组（Glendower Formation）地表网格。由于温顿组露头区域不应存在艾尔组与格伦多沃组地层，因此需通过裁剪后的多边形进行边界限定。