The Muva is a term coined by E.H. Ackermann (1950) for a folded

supracrustal Supracrustal rocks (''supra'' (Latin for "above")) are rocks that were deposited on the existing basement rocks of the crust, hence the name. They may be further metamorphosed from both sedimentary Sedimentary rocks are types of rock form ...

shallow water succession of

quartzite Quartzite is a hard, non- foliated metamorphic rock that was originally pure quartz sandstone.Essentials of Geology, 3rd Edition, Stephen Marshak, p 182 Sandstone is converted into quartzite through heating and pressure usually related to tecton ...

s and

pelite A pelite () or metapelite is a metamorphism, metamorphosed fine-grained sedimentary rock, i.e. mudstone or siltstone. The term was earlier used by geologists to describe a clay-rich, fine-grained clastic sediment or sedimentary rock, i.e. mud or ...

s in the

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. Together with the Damara Belt, it se ...

Zambia Zambia, officially the Republic of Zambia, is a landlocked country at the crossroads of Central Africa, Central, Southern Africa, Southern and East Africa. It is typically referred to being in South-Central Africa or Southern Africa. It is bor ...

. The "Muva" was first described by A. Gray (1930).Gray A. (1930) The correlation of the ore-bearing sediments of the Katanga and. Rhodesian Copperbelt. ''

Economic Geology Economic geology is concerned with earth materials that can be used for economic and industrial purposes. These materials include precious and base metals, nonmetallic minerals and dimension stone, construction-grade stone. Economic geology is a ...

'', 25, 783-801. 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. The presence of these types of rocks is also seen in areas that have undergone marine transgression. In the western coastline of the Indian peninsula the

Jurassic The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately 143.1 Mya. ...

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 Saurashtra, Sourashtra, or variants may refer to: ** Kathiawar, also called Saurashtra Peninsula, a peninsula in western India ** Saurashtra (state), alias United State of Kathiawar, a former Indian state, merged into Bombay State and since its d ...

(

Gujarat Gujarat () is a States of India, state along the Western India, western coast of India. Its coastline of about is the longest in the country, most of which lies on the Kathiawar peninsula. Gujarat is the List of states and union territories ...

) and the Salt Range of

Rajasthan Rajasthan (; Literal translation, lit. 'Land of Kings') is a States and union territories of India, state in northwestern India. It covers or 10.4 per cent of India's total geographical area. It is the List of states and union territories of ...

References

Geography of Zambia Geology of Zambia