The Muva is a term coined by E.H. Ackermann (1950) for a folded supracrustal shallow water succession of quartzite

Quartzite

Quartzite is a hard metamorphic rock which was originally sandstone. Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression within orogenic belts. Pure quartzite is usually white to gray, though quartzites often occur in various shades of pink...

s and pelite

Pelite

Pelite is old and currently not widely used field terminology for a clayey fine-grained clastic sediment or sedimentary rock, i.e. mud or mudstone. It is equivalent to the Latin-derived term lutite. More commonly, metamorphic geologists currently use pelite for a metamorphosed fine-grained...

s in the Irumide Belt

Irumide Belt

The Irumide Belt is a Mesoproterozoic terrane of deformed basement and folded supracrustals, which occurs along the southern margin of an Archaean/Palaeoproterozoic unit called the Bangweulu Block in Zambia....

 of Zambia

Zambia

Zambia , officially the Republic of Zambia, is a landlocked country in Southern Africa. The neighbouring countries are the Democratic Republic of the Congo to the north, Tanzania to the north-east, Malawi to the east, Mozambique, Zimbabwe, Botswana and Namibia to the south, and Angola to the west....

. The "Muva" was first described by A. Gray (1930)

The sequence is interpreted as a 1.8 billion year old shallow marine to coastal sequence which includes dunal deposits (aeolian), beach sands, offshore sand deposits and deeper water pelitic sediments. The alternation of quartzite-pelite successions was interpreted to record transgressive and regressive phases of a coastline along the southern margin of the Bangweulu Block

Bangweulu Block

The Bangweulu Block is a cratonic unit that forms part of the Congo craton of central Africa. The Bangweulu Block however consists of Palaeoproterozoic granitoids and volcanics, and is overlain by a Palaeoproterozoic continental sedimentary succession, the Mporokoso Group, and does not preserve...

. The presence of these type of rocks is also seen in areas that have undergone marine transgression. In the western coastline of the Indian peninsula the Jurassic

Jurassic

The Jurassic is a geologic period and system that extends from about Mya to  Mya, that is, from the end of the Triassic to the beginning of the Cretaceous. The Jurassic constitutes the middle period of the Mesozoic era, also known as the age of reptiles. The start of the period is marked by...

 strata show this character of undergoing a submergence owing to crustal disturbance on the surface of the ocean floor and lead to the presence of marl with limestone in shallow water areas. Such effects are widely observed along the western coastline of India in parts of Saurashtra (Gujarat)and the Salt Range of Rajasthan

Rajasthan

Rājasthān the land of Rajasthanis, , is the largest state of the Republic of India by area. It is located in the northwest of India. It encompasses most of the area of the large, inhospitable Great Indian Desert , which has an edge paralleling the Sutlej-Indus river valley along its border with...

.