(Table T1) Fluid inclusions in siltstone and sandstone grains from ODP Hole 210-1276A

Twenty samples of siltstones and sandstones were taken from Ocean Drilling Program Site 1276 during Leg 210 for fluid inclusion studies. With the exception of one sample of vein calcite, all inclusions were in quartz grains. The results of fluid-inclusion petrology and microthermometry indicate the...

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Bibliographic Details
Main Authors: Shryane, Thérèse, Feely, Martin
Format: Dataset
Language:English
Published: PANGAEA 2007
Subjects:
210-1276A
Area in square milimeter
DRILL
Drilling/drill rig
DSDP/ODP/IODP sample designation
Estimated
Homogenization temperature
Host
Joides Resolution
Leg210
Length
Melting temperature
North Atlantic Ocean
Number
Ocean Drilling Program
ODP
Ratio
Salinity
Sample code/label
Sample comment
North Atlantic
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.776731
https://doi.org/10.1594/PANGAEA.776731
Description
Summary:Twenty samples of siltstones and sandstones were taken from Ocean Drilling Program Site 1276 during Leg 210 for fluid inclusion studies. With the exception of one sample of vein calcite, all inclusions were in quartz grains. The results of fluid-inclusion petrology and microthermometry indicate the presence of three fluid inclusion types (Types 1, 2, and 3). Type 1 fluid inclusions are two-phase (liquid + vapor) aqueous inclusions, and Type 2 inclusions are monophase fluid inclusions (liquid or vapor). These are common in all samples and are formed either as primary isolated inclusions or as secondary inclusions as trails along annealed fractures in the grain. Type 3 fluid inclusions are three-phase (liquid + vapor + solid) inclusions. Type 3 inclusions are rare and are observed as isolated inclusions or in a cluster with other types (i.e., Types 1 and 2). The predominant population throughout the different units sampled is two-phase (liquid + vapor) aqueous fluid inclusions (i.e., Type 1). The temperature of homogenization (TH) bivariate plots for Type 1 inclusions shows dominance throughout the hole of low- to medium-salinity fluids with minimum trapping temperatures between 150° and 400°C.

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