Mudstone Thin Section

Shale and mudstone are both widely used terms for fine grained terrigenous clastic rocks although some use fissility as a requirement for the use of the term shale but there is at present no broadly agreed upon terminology for naming and classifying these rocks see discussions in schieber et al 1998 and potter et al 2005.

Mudstone thin section. Dunham in 1962 1 and subsequently modified by embry and klovan in 1971 2 to include coarse grained limestones and sediments that had been organically bound at. The dunham classification system for carbonate sedimentary rocks was originally devised by robert j. I didn t make thin section close ups for this one.

Rocks under the microscope. 1st plane polarized light. Thin section photomicrograph of carbonate mudstone a recent study by lokier and al junaibi 2016 3 has highlighted that the most common problems encountered when describing a mudstone is to incorrectly estimate the volume of grains in the sample in consequence misidentifying mudstone as wackestone and vice versa.

Click on the image to make it larger. Identification tables for common minerals in thin section these tables provide a concise summary of the properties of a range of common minerals. The dark mudstone is 140 150 m 70 140 m 20 50 m and 20 50 m thick in the west east south and north of the basin respectively.

Some common rock types as seen under the microscope. Within the tables minerals are arranged by colour so as to help with identification. These are photomicrographs very thin slices of rock seen in plane polarised light or between crossed polarisers when the colours seen are produced by interference of light.

The sulige gas field is located in the coupling section of thicker source rocks of the eastern and western basin with mudstone thickness of. Oil generation from lacustrine mudstone from china z 8 thin section for dac pyrolysis of other kerogens visit. Some geologists designate as mudstone any similar rock that is blocky or massive.

Thin section petrography eighty large thin sections 75 mm 100 mm and 18 small thin sections 28 mm 48 mm were prepared and exam ined fig. Entire thin section scan. Measurements of the core section by pxrf have also been integrated into the dataset with a focus on the lower namurian mudstone dominated strata.