Research Article

New View on the Genesis of the Bashuihe Pluton, Laoshan Granites, China: Indications from Fluid Inclusions and H–O Isotopes

Table 1

Petrography characteristics of fluid inclusions.

PositionGas-liquid ratio (%)NumberThe long axis length (μm)NumberShapeNumber

Ciguang cave<3%8<3 μm36Quadrilateral201
3%–5%793–6 μm166Irregular106
5%–9%2886–9 μm145Elliptical108
9%–11%619–12 μm70Rectangular41
>11%29>12 μm48(Near) triangular9

Laojun cave<3%26<3 μm14Quadrilateral238
3%–5%443–6 μm220Irregular88
5%–9%2786–9 μm150Elliptical126
9%–11%959–12 μm76Rectangular24
>11%47>12 μm30(Near) triangular14

Rock outside the cave<3%13<3 μm12Quadrilateral210
3%–5%953–6 μm128Irregular58
5%–9%2636–9 μm156Elliptical122
9%–11%609–12 μm94Rectangular43
>11%23>12 μm64(Near) triangular21