Abstract

Generation and interpretation of geomorphometric maps through remote sensing and GIS techniques are significant platforms for the investigations of neotectonics. This investigation presents data from the Nanga Parbat Syntaxix (NPS) and its neighborhood, which is one of the fastest rising portions of the orogen (8‒10 mm per year). Geoscientists and geomorphologists frequently generate huge datasets and a significant amount is spatially distributed over space. The Trend Analysis of Polynomial Surface (TAPS), Local-Base-Level (LBL) and Vertical Dissection (VD) maps were generated from SRTM DEM. The investigation area is situated along the MMT and below MKT along the Indus River in Gilgit-Baltistan, Northern Pakistan, containing five major geomorphometric units, two describe by drainage dissection, two of relative relief, with an escarpment of thousands of meters, and a relatively flat Deosai plateau in the southeast portion with large VD of the terrains. The residual map was obtained from DTM minus 12th order trend surface that delineates areas of abnormal elevation to check spatial correlation with the other geomorphometric maps. The 12th-order Trend Surface is the best representative surface that reflects NE‒SW and NW‒SE upward-trend surface of Nanga Parbat Haramosh Massif Zone (NPHMZ). The Sassi Raikot Fault Zone (SRFZ), NPHMZ, MKT and region northwest of Jaglot towards Hindukush in the investigation area fits well in terms of anomalous elevations, where as Deosai plateau, Skardu, Kachura, Gorikot (Astore valley), Jaglot and Gunar regions reflects relatively negative anomalies. The LBL map generated through 2nd and 3rd Strahler order streams has decoded excellent results. Isobase and VD results show higher values near NPHMZ, MKT, and upper Astore valley. The axis of the NPHMZ and MKT corresponds with positive anomalous elevation of the residual map and is consistent with the regional neotectonics and uplift.

中文翻译：

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多项式表面和表面动力学趋势分析 (TAPS-SDs)：来自巴基斯坦喜马拉雅山西北部 (MMT-NPHMZ) 的范式

摘要

通过遥感和 GIS 技术生成和解释地貌图是新构造研究的重要平台。本次调查提供了南迦帕尔巴特山脉 (NPS) 及其附近地区的数据，该地区是造山带上升最快的部分之一（每年 8-10 毫米）。地球科学家和地貌学家经常生成巨大的数据集，并且大量数据在空间上分布。多项式表面趋势分析 (TAPS)、局部基层 (LBL) 和垂直解剖 (VD) 地图均由 SRTM DEM 生成。调查区位于巴基斯坦北部吉尔吉特-巴尔蒂斯坦印度河流域 MMT 沿线和 MKT 下方，包含 5 个主要地貌测量单元，其中 2 个通过排水解剖描述，2 个相对地势，有数千米的悬崖，东南部是相对平坦的Deosai高原，地形VD大。残差图是从 DTM 减去 12 阶趋势表面获得的，该表面描绘了异常高程区域，以检查与其他地貌测量图的空间相关性。12 阶趋势面是反映南迦帕尔巴特哈拉莫什地块带 (NPHMZ) NE-SW 和 NW-SE 上升趋势面的最佳代表面。Sassi Raikot 断层带（SRFZ）、NPHMZ、MKT 和调查区 Jaglot 西北部朝向兴都库什的地区在异常海拔方面非常吻合，其中 Deosai 高原、Skardu、Kachura、Gorikot（Astore 山谷）、Jaglot 和 Gunar 地区反映了相对负面的异常。通过 2nd 和 3rd Strahler order 流生成的 LBL 地图已解码出色的结果。Isobase 和 VD 结果显示在 NPHMZ、MKT 和上 Astore 山谷附近的值较高。NPHMZ和MKT的轴线与残差图的正异常高程相对应，与区域新构造和隆起一致。