T. Sakai et F. Masuda, SLOPE TURBIDITE PACKETS IN A FORE-ARC BASIN FILL SEQUENCE OF THE PLIOPLEISTOCENE KAKEGAWA GROUP, JAPAN - THEIR FORMATION AND SEA-LEVEL CHANGES, Sedimentary geology, 104(1-4), 1996, pp. 89-98
The Plio-Pleistocene Kakegawa Group crops out in western Shizuoka, Jap
an. It consists of submarine fan and slope to alluvial deposits and fo
rms a third-order sequence. The slope deposits of the upper Kakegawa G
roup (upper Horinouchi and Hijikata formations) are characterized main
ly by alternations of sand and silt (turbidites). Individual sand laye
rs commonly show either small lobe or channel features. In the upper H
orinouchi (TST) and middle Hijikata formations (HST), sand turbidite p
ackets (2-15 m) consist of small channel and lobe complexes. The slope
sand turbidite packets are different between TST and HST. The differe
nces result from the dissimilar net amplitude of sea-level excursions
when fourth- or fifth-order sea-level changes superimposed on a third-
order sea-level change with different trend. Other important variables
are rate of sediment supply and width of shelf.