Jan Witte’s Post

A truly massive event is unfolding in Riyadh at the Future Minerals Forum 2024. Initiated in 2022, this year counts already with 16000 participants, and representatives of 96 ministries! The Kingdom of Saudi Arabia is pushing towards Mineral Centers of Excellence in the Super-Region, which extends from Southern Africa over the Middle East to Central and South Asia. The aim is to form partnerships to unlock the immense mineral potential in this region. Finland acts as an external partner. GTK and the Saudi Geological Survey (SGS) used the opportunity of this event to sign a Memorandum of Understanding towards closer cooperation and capacity building in geosciences. Geological Survey of Finland (GTK) / Geologian tutkimuskeskus (GTK) Saudi Geological Survey Kimmo Tiilikainen Hannu Lahtinen Thamer Bakarman #gtkpeople #mineralexploration #fmf #capacitybuilding #geosciences

Exploring the Geological Marvels of Wahiba Desert, Oman Nestled in the heart of Oman, the Wahiba Desert stands as a testament to the intricate artistry of geological forces. This captivating expanse of sand dunes holds within its grains a chronicle that spans millions of years. The Wahiba Sand roughly divided into northern and southern regions. The Northern Wahiba primarily features a vast megaridge system, while the Southern Wahiba consists mainly of linear dunes, sand sheets, and nabkha fields. The sands in the Northern Wahiba exhibit a high concentration of mafic minerals and are predominantly sourced from local wadis draining the nearby Hajar Mountains. Notably, one significant wadi source, previously contributing to the Northern Wahiba sands, is currently buried under sands in the Southern Wahiba, eliminating it as a present source for the Northern region. In contrast, the sands of the Southern Wahiba display a more mature mineralogical composition, rich in quartz, likely originating from separate sources, such as the Oman coast or adjacent sabkha plains. Previous assumptions leaned towards the coast being the primary source of sands across the entire sand sea, based on the presence of carbonate sand. However, geochemical evidence now suggests that the carbonate grains in the sand sea stem from contrasting sources alongside other grains. The use of desert sands as propping agents may not be the most optimal choice; however, certain experimental hydraulic fracturing projects have utilized sand from the dunes for unconventional fracturing completions. #wahiba #wahibasands #omangeology #fracturing #proppingagent #hydraulicfracturing #fracking #Sharqiyasands #quartenary #aeolian #ophiolite #sunrise #hotairballoon This breathtaking clip I took just after sunrise at Northern Wahiba dunes early December 2023 Source of literature from research done by Patrick P. Pease and Vatche P. Tchakerian

Ore deposit model ( VMS ). Volcanic massive sulphide. #exploration #massive_volcanic_sulphide #gold #gossan #ANS #Sudan #Saudi #oman #Egypt #coppor.

U.S. Geological Survey (USGS) Thx for the interest in #TIRI :) by #Landsat - #TIRI - Tailings and Impoundments Reflectance Index.

Geological structure of the Arab Republic of Egypt #GIS_AMR

🪶The five elements of the accumulation of conventional oil are: 1. Source rock - where organic matter accumulates and is transformed into hydrocarbons. 2. Migration pathway - the path that the hydrocarbons take to move from the source rock to the reservoir rock. 3. Reservoir rock - a porous and permeable rock where the hydrocarbons accumulate. 4. Trap - a geological formation that prevents the hydrocarbons from escaping. 5. Seal - a relatively impermeable layer of rock that lies above the reservoir and prevents the hydrocarbons from escaping. -An example of this process would be the formation of the Ghawar oil field in Saudi Arabia. The source rock was the Upper Jurassic organic-rich sedimentary rocks, which formed billions of years ago. Over time, the hydrocarbons migrated through the permeable sandstone layer into the Ghawar reservoir rock, where they accumulated due to the trap created by structural deformation. The seal was provided by the overlying layers of shale and salt. The Ghawar field is the largest conventional oil field in the world and has been producing oil for over 70 years. #Geology #Oil&Gas

Looking at logs the wrong way: In carbonate reservoirs, the log response can be cryptic. The boundary between actual geological relevance and log artifact is thinner than a thin bed. The Natih (Mishrif / Maudud / Sarvak) is more heterogenous that his older brother the Thamama. in the Northern Emirates, thanks to nice outcrops exposure, we can see the variations in the GR log correspond to marl streaks separating cleaner limestone beds. What do you think about the sweep efficiency? What would be the best development for this interval? GeomodL International is organizing small group geological field trips in the UAE to illustrate key subsurface reservoir aspects that are often misunderstood. Consider joining us: https://lnkd.in/d8pcmbcu Making sense of your logs in carbonate reservoirs is critical because: better understanding = better modelling = better development = $ $ $ Geomodelly yours!

Dear GSO Member, The Geological Society of Oman (GSO) is organizing a field trip titled "Wadi Daiqa Geology", on Saturday 10th of February 2024. Field trip objective: The study of the 3,400 m thick Amdeh Formation began in an attempt to understand its age and relationships to subsurface formations in Interior Oman. The discovery of the Al Khlata P9 interval in the Wadi Daiqa inlier and the Basal Saiq Clastic interval in a wider area of the Eastern Al Hajar are bi-products of this research.

Attended the International Geological Survey Meeting at Future Minerals Forum and heard some of the biggest challenges in the field from Geological Survey Authorities. They spoke of the digitization of historical geological data and undertaking a country-wide geological survey. However, I was pleasantly surprised to learn that the Ministry of Mining Republic of South Sudan is already ahead of the game. They have already addressed these challenges and are in the implementation phase. South Sudan's historical data has been digitized and is currently in the second quarter of implementation. More than 35 maps have been transformed into GIS shape files, and the team is finalizing the online system to enable access to data from anywhere in the world with internet access. This is a huge leap in the right direction for South Sudan's mining industry. We must explore every corner of the country to identify where, what, and how much value of minerals the country owns.

Let's explore the Dulima Formation in Oman. While the Dulima Formation is not as widely discussed as some other formations in Oman, I can provide some insights based on available information. 1. Formation Overview: - The Dulima Formation is part of the broader geological sequence in Oman. - It is not as prominent as formations like the Hadhramaut Group, but it still plays a role in the region's hydrocarbon systems. 2. Lithology: - The Dulima Formation consists of various lithologies, which may include: - Carbonates: Limestone and dolomite layers. - Siliciclastics: Sandstone, siltstone, and mudstone. - Evaporites: Anhydrite and gypsum. 3. Hydrocarbon Potential: - While the Dulima Formation may not be a major hydrocarbon reservoir, it contributes to the overall petroleum systems in Oman. - Hydrocarbon migration and trapping mechanisms are influenced by the complex structural history and lithological variations. 4. Challenges and Exploration: - Exploration and development in Oman involve technical challenges due to the wide range of lithologies, structural complexities, and varying reservoir ages. - The exploration of hydrocarbons in Oman remains fascinating, even when dealing with less-discussed formations like Dulima. Remember that the Sultanate of Oman hosts diverse geological formations, each with its unique characteristics. If you have further questions or need additional details, feel free to ask! 😊🌍🔍