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Fluid Inclusions.

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Presentation on theme: "Fluid Inclusions."— Presentation transcript:

1 Fluid Inclusions

2 Formation of fluid inclusions
Fig 1-2

3 Fig. 2-12a: Sulfide with trapped fluid inclusion

4 Fig. 2-12c: Trapped organic matter in a small inclusion
Fig. 2-12c: Trapped organic matter in a small inclusion. The quantity of organic matter makes it extremely unlikely that it precipitated from the trapped fluid. Rather, the inclusion formed around the organic matter.

5 Fig. 2-12D: Fluid inclusion with halite daughter crystal.

6 vapour bubble Fig. 12-2e: Fluid inclusion with many daughter minerals from pegmatitic flluid.

7 Fig. 2-12F: Oil in fluid inclusion indicated by arrow.

8 Fig. 2-17A: Synthetic fluid inclusion with liquid (a), vapour (g) and liquid carbon dioxide (lc)

9 Fig. 2-17B: Natural fluid inclusion with liquid (a), vapour (g) and liquid carbon dioxide (lc).

10 Fig. 3-1: P-T projection of system H2O

11 Fig. 3-2: Processes in fluid inclusions
Fig. 3-2: Processes in fluid inclusions. a→b What happens to density and volume in fluid inclusion?

12 Fig. 3-3: P-T projection of H2O showing isochores with units of cm3mol-1. Geotherm shows limiting conditions for the deep crust.

13 Fig. 3-4: Schematic P-T-Vm relations of the H2O system
Fig. 3-4: Schematic P-T-Vm relations of the H2O system. (a) P-T-Vm block diagram with isobars.

14 Fig. 3-6: Point 1 represents Tt and Pt of a fluid inclusion

15 Fig. 3-7: Percentaes in italics show the volume fraction of vapor at room temperature.

16 Fig. 3-8: P-T-Vm relations of the H2O system, illustrationg homogeneous entrapment of a fluid inclusion assemblage. φLiquid = volume fraction of liquid in each inclusion.


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