Australian East Coast Sea Level Changes from Sand Deposits and Dune Morphology

An investigation of beach-sand heavy-mineral deposits between the Clarence River in New South Wales and North Stradbroke Island in Queensland was conducted by the Bureau of Mineral Resources from 1948 to 1950. The work included detailed boring and sampling of beaches, coastal dunes, and coastal plains up to a mile or two inland, with bore-collar levels determined relative to high water mark. Results pertaining to changing sea levels are summarized from this work.

Use Cases

• Analyze historical sea level changes based on the levels of bore-collars relative to high water mark.
• Study coastal sediment composition and deposition patterns based on the detailed boring and sampling of beaches and dunes.
• Model past coastal morphology based on the reconnaissance geological investigation of North Stradbroke Island.

Strengths

• Data collection spans a defined geographic region from the Clarence River to North Stradbroke Island.
• Fieldwork was conducted over a specific three-year period from 1948 to 1950.
• Methodology included detailed boring and sampling with levels determined relative to a physical benchmark (high water mark).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic and temporal bias inherent to the specific survey period and location.

Provenance

Source

Australian Ocean Data Network

Collection Method

Detailed boring and sampling of beaches, coastal dunes, and coastal plains, with reconnaissance geological investigation.

Time Range

1948-1950

Freshness

Last updated 2026-05-05 00:20:09.895055; freshness should be verified.

Geography

Australian east coast, from Clarence River, New South Wales to North Stradbroke Island, Queensland.