World Data Service for Geophysics

Index to Marine and Lacustrine Geological Samples (IMLGS)
an international partnership

doi:10.7289/V5H41PB8


Repository: SOEST [Contact the Curator]
Ship: Moana Wave
Cruise: MW8702
Sample: MW8702 STA17 RD16
Device: dredge, rock
Latitude: -12.00067
Longitude: 160.95
Water Depth(m): 2500
Date: 19870214
Storage: room temperature, dry

East Manihiki
1 :   
Comments: East Manihiki; ~20-25 kg of rocks all taken as hand specimens. Assortment of pieces included 1 limestone piece 40 x 30 x 30 cm covered *** thin Mn stains to maximum of 3 mm crust. Depressions were filled *** stains + thin crusts. Rest of samples were smaller - first size to 20 x 15 x 15 cm and consisted of unconsolidated and consolidated volcanic sandstones siltstones, and claystones with some containing phosphatized carbonates. All samples were at least stained *** Mn and most were covered *** 5 mm to 2 cm of crust. two samples showed well developed crusts up to 4.5 cm thick with admixed phosphorite.
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