This group is characterized by calcareous clay with tufa fragments inclusions. The tufa often exhibits pisolitic appearance. Basalt fragments are commonly appear as a secondary component. Quaternary tufa dominates the Beth Shean Valley (Hazor 2000). Example of a sub-group from Tel Rehov: Fabric is characterized by calcareous silty matrix usually optically active. Its color is reddish-brown to brown in crossed and regular polarized light. Particles are usually double- to open-spaced with 5–10% voids in most cases. Thus the Group 2 matrix differs from Group 1 as being more calcareous/optically active, less porous, and having a higher quantity of more reddish clay sized matrix. The group has ae c:f:v ratio is 30–50:35–65:5–15. The main non-plastics are calcareous inclusions and limestone, travertine and calcareous concentrations. Travertine (some of the particles have the pisolitic appearance, spheroid with a concentrically laminated internal structure, typical of travertine), limestone and chalk appear in particles often 1–2 mm in size, and comprise usually about 20–25% of slide area. Basalt and chert appear usually in lower quantities than in Rehov Group 1, yet appear together with silty quartz, opaque minerals, shell and basalt derived minerals. Microfossils appear more often up to 10%.