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Please use this identifier to cite or link to this item: http://hdl.handle.net/1842/545

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Title: WHOLE-ROCK 87Sr/86Sr COMPOSITION AND APPARENT STRONTIUM ISOTOPIC AGE OF LIMESTONES FROM SITE 1118, WOODLARK RIFT BASIN, SOUTHWEST PACIFIC (OCEAN DRILLING PROGRAM LEG 180)
Authors: Allan, Tony
Robertson, Alastair H F
Sharp, Timothy R
Trotter, Julie
Issue Date: 2001
Citation: Taylor, B., Huchon, P., Klaus, A., et al., 1999. Proc. ODP, Init. Repts., 180 [Online]. Available from World Wide Web: http://www-odp.tamu.edu/publications/180_IR/180TOC.HTM. [Cited 2004-06-21]
Publisher: Ocean Drilling Program
Series/Report no.: Volume 180 Scientific Results;180SR-158
Abstract: Limestone from Unit VI (857.1–859.15 meters below seafloor) collected at Site 1118 contains a planktonic foraminiferal fauna indicating a latest Miocene to early Pliocene age. Globorotalia tumida is recorded in Sample 180-1118A-68R-4, 46–48 cm, indicating an early Pliocene (N18) age at this level (J. Resig, pers. comm., 2000). Based on their known range in the western Papuan Basin, the presence of (rare) Lepidocyclina and common Amphistegina in some samples suggests that abundant shallow-water bioclastic debris present in these limestones may be reworked from older, possibly middle or early late Miocene sediments. Four samples were selected for whole-rock strontium isotopic analysis to further investigate this possibility. A petrographic examination of samples analyzed was also conducted.
Keywords: STRONTIUM ISOTOPIC AGE
LIMESTONES
WOODLARK RIFT BASIN
OCEAN DRILLING PROGRAM LEG 180
URI: http://www-odp.tamu.edu/publications/180_IR/180TOC.HTM
http://hdl.handle.net/1842/545
Appears in Collections:Earth and Planetary Science Research Institute publications

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