Chromite deposits have long been reported and exploited in Northern Pakistan as a result of the o... more Chromite deposits have long been reported and exploited in Northern Pakistan as a result of the ongoing convergence of Indian and Asian plates. This research work is a study of one such prospect. We used geophysical and geochemical tools such as magnetic susceptibility at seventy-seven observation stations along with fifteen rock samples collected for geochemical studies. Our geochemical analysis reveals a very high value of Fe, Mn, Cu, and Ni in regions of high magnetic susceptibility indicating the possibility of the presence of Magnetite, Chondrite, Copper-pyrites, and Pentlandite Ores. In addition, we also conducted the correlations analysis to investigate the potential association between various geochemical variables including trace elements to evaluate the potential of the ores for economic minerals others than chromite. Our PCs analysis result presents a clear picture that most of the minerals such as Fe, Ni, Co, Cd, Mg, Mn, and Pd are produced by the same source. Our various analyses are in perfect agreement with previous literature indicating the presence of economical mining of Chromite.
The forest area of Assam State is known for its rich biodiversity. In the present study, the dist... more The forest area of Assam State is known for its rich biodiversity. In the present study, the disturbance regime within the Assam forest area caused by periodic flood and forest fire, was assessed using the Moderate Resolution Imaging Spectroradiometer (MODIS) time-series (2001–2011) data. The MODIS Global Disturbance Index (MGDI) images were generated using MODIS derived Enhanced Vegetation Index (EVI) and Land Surface Temperature (LST) images. The temporal intensity of flood and forest fire in sixteen representative forests was analyzed to develop the MGDI based thresholds for detecting the disturbed area. The threshold for the non-instantaneous disturbance, i.e. flood, was found to be 107% whereas it was 111% for instantaneous disturbance, i.e. forest fire. The thresholds were applied on the MGDI images to delineate disturbed caused by flood and fire, separately for each year. The time-series disturbance areas were integrated over the years (2001–2011) to generate the classified d...
PBIs were discovered by Marvel and coworkers more than 40 years ago, and they received special at... more PBIs were discovered by Marvel and coworkers more than 40 years ago, and they received special attention in the 1960s and 1970s just because of their outstanding thermal, chemical, and mechanical properties. However, their high cost and their ability to absorb water gradually reduced ...
Chromite deposits have long been reported and exploited in Northern Pakistan as a result of the o... more Chromite deposits have long been reported and exploited in Northern Pakistan as a result of the ongoing convergence of Indian and Asian plates. This research work is a study of one such prospect. We used geophysical and geochemical tools such as magnetic susceptibility at seventy-seven observation stations along with fifteen rock samples collected for geochemical studies. Our geochemical analysis reveals a very high value of Fe, Mn, Cu, and Ni in regions of high magnetic susceptibility indicating the possibility of the presence of Magnetite, Chondrite, Copper-pyrites, and Pentlandite Ores. In addition, we also conducted the correlations analysis to investigate the potential association between various geochemical variables including trace elements to evaluate the potential of the ores for economic minerals others than chromite. Our PCs analysis result presents a clear picture that most of the minerals such as Fe, Ni, Co, Cd, Mg, Mn, and Pd are produced by the same source. Our various analyses are in perfect agreement with previous literature indicating the presence of economical mining of Chromite.
The forest area of Assam State is known for its rich biodiversity. In the present study, the dist... more The forest area of Assam State is known for its rich biodiversity. In the present study, the disturbance regime within the Assam forest area caused by periodic flood and forest fire, was assessed using the Moderate Resolution Imaging Spectroradiometer (MODIS) time-series (2001–2011) data. The MODIS Global Disturbance Index (MGDI) images were generated using MODIS derived Enhanced Vegetation Index (EVI) and Land Surface Temperature (LST) images. The temporal intensity of flood and forest fire in sixteen representative forests was analyzed to develop the MGDI based thresholds for detecting the disturbed area. The threshold for the non-instantaneous disturbance, i.e. flood, was found to be 107% whereas it was 111% for instantaneous disturbance, i.e. forest fire. The thresholds were applied on the MGDI images to delineate disturbed caused by flood and fire, separately for each year. The time-series disturbance areas were integrated over the years (2001–2011) to generate the classified d...
PBIs were discovered by Marvel and coworkers more than 40 years ago, and they received special at... more PBIs were discovered by Marvel and coworkers more than 40 years ago, and they received special attention in the 1960s and 1970s just because of their outstanding thermal, chemical, and mechanical properties. However, their high cost and their ability to absorb water gradually reduced ...
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