TY - JOUR
T1 - Signatures of Late Neoproterozoic Gondwana assembly and Maronian glaciation in Lesser Himalaya
T2 - A palaeogeographical and stratigraphical approach
AU - Umar, Muhammad
AU - Betts, Peter
AU - Khan, Malik Muhammad Saud
AU - Sabir, Muhammad Amjad
AU - Farooq, Muhammad
AU - Zeb, Asif
AU - Jadoon, Umair Khan
AU - Ali, Shoaib
N1 - Publisher Copyright:
© 2015, Wydawnictwo Naukowe INVIT. All rights reserved.
PY - 2015/3/1
Y1 - 2015/3/1
N2 - Stratigraphical and sedimentological analyses of Late Neoproterozoic successions in Lesser Himalaya are combined herein with palaeogeographical considerations and comparisons with equivalent successions in India and South China. The succession starts with the Hazara Formation, which contains complete and incomplete Bouma sequences suggesting its deposition in deep marine turbidite settings. The overlying Tanawal Formation, rich in massive sandstone, shale and siltstone, was deposited in shallow marine conditions, as indicated by the presence of parallel lamination, large scale tabular, trough cross- and hummocky cross-stratifications. The Tanawal Formation facies shift laterally from proximal (south-southeast) to distal (north-northwest). The glaciogenic Tanaki Boulder Bed, overlying the Tanawal Formation, was deposited during the Maronian glaciation. It is equivalent to the Blaini Formation of India, and to the Sinian diamictites of South China. The Abbottabad Formation of Cambrian age overlies the Tanaki Boulder Bed, and is composed of dolomite, chert nodules and phosphate-rich packages; similar successions are documented in India and South China at the same stratigraphical interval. The similarities of the Neoproterozoic successions of Lesser Himalaya (both in Pakistan and India) and South China suggests their possible proximity during the break-up of Rodinia and the assembly of the Gondwana Supercontinent.
AB - Stratigraphical and sedimentological analyses of Late Neoproterozoic successions in Lesser Himalaya are combined herein with palaeogeographical considerations and comparisons with equivalent successions in India and South China. The succession starts with the Hazara Formation, which contains complete and incomplete Bouma sequences suggesting its deposition in deep marine turbidite settings. The overlying Tanawal Formation, rich in massive sandstone, shale and siltstone, was deposited in shallow marine conditions, as indicated by the presence of parallel lamination, large scale tabular, trough cross- and hummocky cross-stratifications. The Tanawal Formation facies shift laterally from proximal (south-southeast) to distal (north-northwest). The glaciogenic Tanaki Boulder Bed, overlying the Tanawal Formation, was deposited during the Maronian glaciation. It is equivalent to the Blaini Formation of India, and to the Sinian diamictites of South China. The Abbottabad Formation of Cambrian age overlies the Tanaki Boulder Bed, and is composed of dolomite, chert nodules and phosphate-rich packages; similar successions are documented in India and South China at the same stratigraphical interval. The similarities of the Neoproterozoic successions of Lesser Himalaya (both in Pakistan and India) and South China suggests their possible proximity during the break-up of Rodinia and the assembly of the Gondwana Supercontinent.
KW - Glaciation
KW - Lesser Himalaya
KW - Neoproterozoic
KW - Palaeogeography
KW - Rodinia break-up
UR - http://www.scopus.com/inward/record.url?scp=84926164112&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84926164112&partnerID=8YFLogxK
U2 - 10.1515/agp-2015-0001
DO - 10.1515/agp-2015-0001
M3 - Review article
AN - SCOPUS:84926164112
SN - 0001-5709
VL - 65
SP - 1
EP - 19
JO - Acta Geologica Polonica
JF - Acta Geologica Polonica
IS - 1
ER -