Geology – Prakash Luitel https://prakashluitel.com Geologist | Geophysics & Geochemistry Section, Landslide Research Section Sat, 11 May 2024 13:15:46 +0000 en-US hourly 1 https://prakashluitel.com/wp-content/uploads/2022/07/cropped-signature-1-32x32.jpg Geology – Prakash Luitel https://prakashluitel.com 32 32 Essential personal equipment for geological field work https://prakashluitel.com/essential-personal-equipment-for-geological-field-work/ Fri, 14 Apr 2023 17:09:01 +0000 https://prakashluitel.com/?p=908 Geological fieldwork is a critical aspect of geological research and exploration that involves a range of activities such as mapping rock formations and structures, collecting rock samples for laboratory analysis, and measuring the orientation and alignment of rocks. It provides valuable direct observations and data that cannot be obtained through remote sensing or laboratory analysis alone and also offers opportunities for collaboration and networking within the scientific community.

When preparing for geological fieldwork, it’s essential to have the right personal items to ensure your safety and comfort in the field. The following checklist provides a comprehensive list of personal items that you should carry:

Raincoat/ Umbrella; Having both helps for light showers when rain doesn’t disturb the work. Wearing a raincoat and carrying an umbrella for covering the field diary.

Footwear: full ankle shoes designed for trekking are recommended to prevent leg twisting. Quality sock pairs in adequate quantities and slippers for wearing on camp.

Field clothes: T-shirts, shirts, trousers, vests, and underwear. Thick Plush or Down Jacket for winter with additional thin windshield for daytime. Carrying a wind-cheater on every season is helpful. Waterproof jackets would be ideal if occasional rainfall is expected (as in pre-monsoon). Thermal wear for winters and thin towels.

Personal Care: Sunglasses, Sunscreen cream moisturizer, lip balm, hair oil, toothbrush, toothpaste, shampoo, bathing soap/ shower gel, soaps/ surfs for washing clothes

Camping: Sleeping bag, Inner Liner, Mattress, Tents (complete sets)

Equipment: Torchlight, Pocket KnifeHam

Geological equipment: Geological hammer, Brunton Compass, Hand Lens (10x), GPS, Dilute HCl acid, Battery for GPS, Camera

Lighter/Matches

Official Letters, Travel Order, Identity Cards, Visiting Card

Stationeries: Diary, Graph paper, Color PencilPencils, Ball pen, Eraser, Sharpener, ScaleProtractor

Maps and Reports: Topo Maps, Old Reports, and Old geological maps of the area or the surrounding area

Electrical Equipment: Mobile Chargers, Multi plugLaptop, Solar Light, Solar Chargers, Power Banks

Medicines: Common Medicines (Paracetamol, Gastric Medicine, Vicks, Moov, Ointments, Bandage, Handiplast), Personal Medicines

Food and Beverages: Chocolates, Snacks, Dry fruits, Tea/Coffee

The above list is generated based on the 50 days of geological fieldwork in the Rolpa district. If you feel something is missing and the checklist needs to be updated, please comment.

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Controlling slope failure problems in Nepalese highway https://prakashluitel.com/controlling-slope-failure-problems-in-nepalese-highway/ Wed, 18 Jan 2023 16:08:00 +0000 https://prakashluitel.com/?p=847 Slope failure refers to the movement of soil or rock down a slope, which can cause damage to the slope, surrounding areas, and any infrastructure built on or near the slope. There are many causes of slope failure, some of the most common include:

  1. Weathering and erosion: Weathering and erosion can cause the soil or rock on a slope to become weaker and less stable, increasing the risk of failure.
  2. Water: Water can cause slope failure in a number of ways. Rainfall can cause soil to become saturated and heavy, increasing the risk of failure. Groundwater can also cause soil or rock to become weaker and more susceptible to failure.
  3. Overloading: Overloading a slope with too much weight, such as by building a large structure on it, can cause the soil or rock to become unstable and fail.
  4. Natural processes: Natural processes such as earthquakes, volcanic eruptions, and landslides can cause slope failure.
  5. Unsuitable construction materials: Use of unsuitable construction materials, such as weak soil or rock, can increase the risk of slope failure.
  6. Improper construction or maintenance: Improper construction or maintenance of a slope can increase the risk of failure, such as not providing proper drainage or not maintaining the slope.
  7. Human activities: Human activities such as deforestation, mining, and urbanization can cause slope failure by altering the natural drainage patterns, increasing the weight on the slope, and causing soil compaction.
  8. Vegetation: Vegetation can cause slope failure by its roots penetrating the soil and rock, causing it to become weaker, or by holding water in the soil, increasing the weight and saturation of the soil.

Slope failure can occur suddenly, as a result of a single event, or gradually over time. Additionally, slope failure can occur in different forms such as rockfalls, landslides, mudflows, and creep. Therefore, the causes of slope failure can vary depending on the type of failure, the location, and the specific conditions of the slope.

Controlling Measures of Slope Failure in Highway

Slope failure can be a major issue for highway infrastructure, as it can cause damage to the road, disrupt traffic, and create safety hazards for drivers and passengers. To control slope failure in highway construction, several methods can be used, including:

  1. Proper site selection and investigation: Careful site selection and investigation can help identify areas that are prone to slope failure, and allow for the design of the highway to minimize the risk of failure.
  2. Drainage control: Good drainage is essential to prevent water from building up in the soil and causing slope failure. Drainage can be improved by installing drainage systems such as ditches, culverts, and retaining walls.
  3. Stabilization: Slopes can be stabilized by adding reinforcement materials such as rock bolts, mesh, and concrete. This can help to increase the strength and stability of the slope, reducing the risk of failure.
  4. Slope flattening: Slope flattening can be used to reduce the steepness of a slope and increase its stability. This can be done by cutting and filling or by using terracing.
  5. Retaining walls: Retaining walls can be used to provide additional support and stability to a slope. They can be made of a variety of materials, including concrete, wood, or steel.
  6. Rockfall protection: Rockfall protection measures such as rockfall barriers, netting, and catchment areas can be used to prevent rockfalls from damaging the road or injuring drivers.
  7. Monitoring: Regular monitoring of slopes can help detect any signs of failure, such as cracks or movement, and allow for prompt action to be taken.
  8. Maintenance: Regular maintenance of slopes can help to keep them in good condition, reduce the risk of failure, and prolong the life of the road.

The choice of method and the specific design of the slope protection should be based on the site conditions, the type of soil and rock, and the expected traffic volume. Additionally, the slope protection should be designed to withstand the potential hazards such as earthquakes, heavy rainfall, and freeze-thaw cycles.

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MS Excel, an undermined tool for geologists https://prakashluitel.com/ms-excel-an-undermined-tool-for-geologists/ Mon, 16 Jan 2023 15:39:22 +0000 https://prakashluitel.com/?p=838 When did we begin to take MS excel seriously? A simple looking computer software can do more than we value it.

Microsoft Excel is a powerful tool that can be used by geologists in a variety of ways to manage, analyze, and present data. Some of the main advantages of using Excel for geologists include:

  1. Data management: Excel allows geologists to organize and manage large amounts of data in a structured and easily accessible format. This can include data from field measurements, laboratory analyses, and remote sensing imagery.
  2. Data analysis: Excel provides a wide range of built-in tools for data analysis, including statistical functions, pivot tables, and charts. This allows geologists to quickly and easily perform calculations, create graphs and tables, and identify patterns and trends in their data.
  3. Data visualization: Excel can be used to create a variety of charts and graphs, such as line plots, scatter plots, and histograms. This allows geologists to easily visualize and communicate their data to others.
  4. Data mapping: Excel can be used in conjunction with GIS software to create maps that can be used for fieldwork, research, and presentation.
  5. Automation: Excel allows geologists to automate repetitive tasks, such as data entry and analysis, by using macros and scripts. This can save time and reduce errors.
  6. Collaboration: Excel allows multiple users to access and edit the same data simultaneously, making it a useful tool for collaboration and teamwork.
  7. Compatibility: Excel is widely used in the industry and academia, making it easy to share data and collaborate with other geologists and researchers.

In summary, Excel is a versatile and widely-used tool that can be a valuable asset for geologists in various aspects of their work, from data management and analysis to presentation and collaboration.

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Software that geologists need to learn https://prakashluitel.com/software-that-geologists-need-to-learn/ Mon, 16 Jan 2023 15:30:59 +0000 https://prakashluitel.com/?p=835 Geologists use a variety of software programs to aid in their research and analysis. Some commonly used software for geologists include:

  1. Geographic Information Systems (GIS) software: GIS software allows geologists to create, manage, and analyze spatial data. Examples include ArcGIS, QGIS, and GRASS GIS.
  2. Remote Sensing software: Remote sensing software allows geologists to process, analyze and interpret data from satellite and aerial imagery. Examples include ENVI, ERDAS Imagine, and PCI Geomatica.
  3. 3D modeling software: 3D modeling software allows geologists to create visual representations of subsurface geology and structures. Examples include Petrel, Kingdom Suite, and Global Mapper.
  4. Geostatistics software: Geostatistics software allows geologists to analyze spatial data and create models of mineral deposits and other geological features. Examples include GSLIB, SGeMS, and GoCad.
  5. Data visualization and plotting software: Data visualization and plotting software allows geologists to display and analyze data in a variety of formats, including graphs, maps, and cross-sections. Examples include Surfer, Origin, and Matplotlib.
  6. Programming languages: Knowledge of programming languages such as Python or R can be useful for geologists to analyze large datasets or develop custom tools for their research.
  7. Geophysics software: Geophysics software allows geologists to process and interpret data from geophysical surveys, such as seismic, gravity, and magnetic data. Examples include Kingdom Suite, Seismic Unix, and Oasis Montaj.

The software that a geologist may need to know depends on the field they’re working in, the type of research they’re doing and the company or organization they’re working for. Additionally, software updates frequently, so it’s important for geologists to stay current with the latest versions and advancements in technology.

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