Dunham specifically stated that, where appropriate, these six textural class names are intended to be combined with modifiers describing grains and mineralogy. The original classification can …

1. Packstone Grain-supported; carbonate mud matrix between skeletal grains (dasyclad algae, benthic foraminifers, bivalves) in interparticle pore space. Thin section kindly provided by T. …

Thin section photomicrograph of peloid packstone with fragmented bioclasts. A study of the adoption and use of carbonate classification systems by Lokier and Al Junaibi (2016) [2] …

Click the microscope button to view a thin section for this sample. S11. Limestone - Bioclast-rich pelmicrite / packstone. This sample can be classified using the Dunham/Folk Classification. …

Packstone. The rock shown in this thin section of a packstone is composed of mollusks and echinoid fragments in a lime-mud matrix. The texture shows grain support.

If the carbonate is grain supported but contains a small percentage of mud, then it is known as a packstone. If the sediment is mud supported but contains more than 10 percent grains, then it …

This work focuses on clarifying of depositional environment, diagenesis, and reservoir characterization in five stratigraphic sections of Lower Eocene Margala Hill Limestone in the …

Foraminiferal Packstone/Wackestone: Fragmented Coskinolina, small and large rotalids, miliolids, corals, Discocyclina and other fossils are mixed together in this packstone to wackestone (Fig....

Peloidal grainstone-packstone is characterized by abundant peloids with subordinate amounts of crinoid ossi- cles, ostracodes, bivalves, smaller foraminifers, ooids, and lithoclasts ( Fig. 6a;...

Although you can gain a significant amount of information from carbonates in hand sample, thin sections are very useful for more nuanced descriptions and interpretations. Brief descriptions …