SUSPENSION AND SEDIMENT SURROUNDING OF NORTHERN PART WATER OF SULAWESI UTARA

Convention Bandung 2004 (CB2004) The 33^rd Annual Convention & Exhibition 2004

Indonesian Association of Geologist Horizon Hotel, 29-30 Nov, 1 Oct 2004, Bandung

SUSPENSION AND SEDIMENT
SURROUNDING OF NORTHERN PART
WATER OF SULAWESI UTARA

Helfinalis

Research Center For Oceanography LIPI

Abstract

The beach of Kwandang bay generally found mangrove, muddy sand and breccias (rose color), schist In the East and Northwest. The wide of the beach slope more less 25 meters with angel 3-5º .The coastal plain is very narrow and direct connected to the hilly. On the Hill generally have red clay and breccias with black color. In the Gobba found coarse sand with 1-2 meters depth. The corai reef more less 100 metre wide with 1-4 meters depth and the bay with 40- 50 meters depth and content of greenish grey mud. As long as Menado Bay generally has in dam, except in the eastern part. Malalayang beaches content of coarse sand with jetty in T form and for protected the beaches from the waves. The reclamation of the beach saw in the East Menado bay until hundred meters to the east of the Menado port and in front of areas putted the breccias for protected the beach from erosion.

The suspension value on the surface water (2 meters depth) more higher compared with in the middle and bottom. In general, the all suspension value still below the tolerance limit of KLH < 70 mgr/l. On the surface until 40 cm thick of sea sand around Bangkit and Bunaken Islands. On the others of surface seafloor found mixing between gravel, sand, silt and mud.