Champeh salt dome is located 30 km northwest of Bandar Lengeh, east of Hormozgan province, Iran. Iron ores and several alterations can be found in this salt dome, which consists of evaporitic and volcanic sequences of the Hormoz series and Pabdeh-Jahrom, Asmari, Gachsaran, and Mishan formations. The existing geological maps do not provide comprehensive details of mineralization, alteration, and various lithologies in this salt dome. Therefore, the separation and detection of these phenomena, by using ASTER (advanced spaceborne thermal emission and reflection radiometer) and OLI (operational land imager) satellite images and utilizing different image processing methods can be helpful to locate them and produce a lithological map of this area. The processing methods used in this study are band ratio, false-color combination, principal component analysis, independent component analysis, minimum noise fraction, spectral angle mapping, and linear spectral unmixing. Due to a vast number of salt domes in the south and southwest of Iran, and the similarity of these salt domes in terms of mineralogy and lithology, the results of this study can be useful in future geological and exploratory studies for this salt dome and similar salt domes of the world.

Champeh盐丘位于伊朗霍尔木兹甘省以东的Bandar Lengeh西北30公里处。在这个盐丘中可以发现铁矿石和一些蚀变，它由 Hormoz 系列和 Pabdeh-Jahrom、Asmari、Gachsaran 和 Mishan 地层的蒸发和火山序列组成。现有的地质图没有提供该盐丘中矿化、蚀变和各种岩性的全面详细信息。因此，通过使用ASTER（先进星载热发射和反射辐射计）和OLI（操作陆地成像仪）卫星图像并利用不同的图像处理方法对这些现象进行分离和检测，有助于定位它们并生成该地层的岩性图。区域。本研究采用的处理方法有色带比、假色组合、主成分分析、独立成分分析、最小噪声分数、光谱角度映射和线性光谱分离。由于伊朗南部和西南部有大量盐丘，且这些盐丘在矿物学和岩性方面的相似性，本研究结果可用于未来对该盐丘及类似盐丘的地质和勘探研究。世界盐丘。