Читать книгу Prince Edward Island National Park: The Living Sands - David M. Baird - Страница 2

THE SURFACE

The shoreline

How bars and spits are built along shallow shorelines

Where did all the sand come from?

THE GLACIATION

THE BEDROCK

What the rocks are made of

Layers in the rock

Joints in the rock

Erosion of the rock

THE BEACHES

Grains of sand

Why quartz is the most common

How some sand is that way twice

Processes of sorting on the beach

Ripple marks

Distribution of grains in ripple-marked sands

Preservation of ripple marks

Interference with the rippling of sand

Fossil ripple marks

Swash marks

Rill marks

Patterns and hollows around pebbles and shells

Trails and tracks on the bottom

DUNES AND WIND-BLOWN SAND

How dunes form

Ripple marks

Sorting

POINTS OF INTEREST

Dalvay Beach (1)

Stanhope Beach (2)

Bridge over inlet to Covehead Bay (3)

Brackley Beach (4)

Causeway to Rustico Island (5)

Rustico Island (6)

North Rustico (7)

Orby Head (8)

Shore just east of Cavendish Beach (9)

Cavendish Beach (10)

SUMMARY