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PERIDOTITE
No full textRock Type: Iron Ore/Ultramafic
Province: Crocker Range
Age: Middle Miocene – Pliocene (13.82 – 2.58 million years ago)
Origin: Kg Polumpung Melangkap, Kota Belud, Sabah
* Peridotite, a coarse-grained ultramafic igneous rock, primarily forms through the crystallization of magma deep within the Earth's mantle and is not common to be found in surface exposure.
* Peridotite can be brought to the Earth’s surface through tectonic processes like mantle upwelling at mid-ocean ridges or in ophiolite complexes.
* Its characteristic green to black color stems from the abundance of olivine and pyroxene minerals. Peridotite exhibits a granular texture due to its coarse crystalline structure, resulting from slow cooling and solidification of the molten rock.
* Serpentinization, a transformative process, occurs when peridotite undergoes hydration, reacting with water to produce serpentine minerals, such as lizardite, chrysotile, and antigorite.
* Serpentinization not only changes the mineral composition but also influences the rock's color, turning it into shades of green. This alteration process often results in a softer, greasy feel to the peridotite
SANDSTONE AND SHALE KAMPUNG BAWANG
No full textMajor Rock Type: Sedimentary Rock
Formation: Crocker Formation
Age: Upper Oligocene - Lower Miocene (27.8 - 15.9 million years ago)
Origin: Kampung Bawang, Tamparuli
* This is a compacted sandstone from Crocker Formation in Sabah.
* The sample has very fine to fine grains of minerals, mostly accommodated by higher concentration of quartz.
* The term compacted is used to show that the rock had underwent burial at certain depth in the Earth, resulting into removal of the air spaces (porosity) and increasing the density of the rock.
* The mud drapes indicates the rock was deposited in a tidal environment, which is part of the marine shore that was submerged and then was exposed again, due to the rise and falls of the sea.
* Commonly sandstone is widely used for construction industry
LNG CARRIER
No full textA Liquefied Natural Gas (LNG) Carrier is a specialized ship designed to transport liquefied natural gas across oceans. LNG is natural gas that has been cooled to approximately -162°C (-260°F), transforming it into a liquid state to reduce its volume and make it easier to transport. LNG carriers are vital for transporting natural gas from production facilities to consumption markets where pipelines are not feasible. These vessels are equipped with advanced technologies to handle the extreme cold temperatures and conditions associated with transporting liquefied natural gas
