Sandstone rings
Liesegang rings at Maitland Bay Beach.
Terrigal Formation sandstone from the Triassic at Maitland Bay beach.
On the other side of the Hawkesbury, the corresponding rocks are Newport Formation sandstone. Above them both, the Hawkesbury sandstone, all from the Triassic.
Siderite is the mineral causing the colouration in these rocks, (FeCO3).
This is my favourite shot of the recent photos at Maitland Bay Beach.
Sandstone rings
Liesegang rings at Maitland Bay Beach.
Terrigal Formation sandstone from the Triassic at Maitland Bay beach.
On the other side of the Hawkesbury, the corresponding rocks are Newport Formation sandstone. Above them both, the Hawkesbury sandstone, all from the Triassic.
Siderite is the mineral causing the colouration in these rocks, (FeCO3).
This is my favourite shot of the recent photos at Maitland Bay Beach.