| LOCATION |
| Map |
Show Map
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| Address |
FLINDERS RANGES |
| Locality |
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| Accuracy |
L - low level confidence |
| Council Area |
Land Not Within a Council Area (Flinders) |
| Polygon Type |
S - parcel that has been split (because it has more than one heritage item on it |
| DESCRIPTION |
| Details (Known As) |
Enorama Diapir Geological Monument, Ikara-Flinders Ranges National Park [Designated as a place of geological significance] |
| Registered Name |
Enorama Diapir Geological Monument |
| Significance |
The Enorama Diapir Geological Monument contains clear exposures of the contacts between the Enorama Diapir and the algal reefs embedded within the younger Enorama Shale. These reefs grew along Enorama Diapir's shores following its intrusion upwards through the sea floor around 640 million years ago. Exposures of the Etina Formation, including stromatolites and eroded material from the diapir, are also present. The contacts between the Enorama Diapir, the Cryogenian-aged reef complex, and the dolerite boulder bed is considered to provide tangible evidence of the evolution of the diapir and its subsequent movement in the central Flinders Ranges.
STATEMENT OF DESIGNATION
Designated Place of Geological Significance
The Enorama Diapir Geological Monument has contacts with the Etina Formation and the Enorama Shale. The two geological formations provide an excellent opportunity for research into the origin of Flinders Ranges diapirs and the effect of diapir development on the surrounding geology. The Etina Formation contains well-developed stromatolites and a dolerite boulder bed, located at the contact of the formation and the diapir. Their presence supports a hypothesis of phases of erosion and `pulses' of diapir development. The younger Enorama Shale contains unusually aged algal reef complexes from the Elatina glaciation associated with, and showing evidence of, the potentially phased growth of the diapir during a time of sea level rise. It is highly likely that additional research on the diapir and surrounds will provide valuable information into the development of not only the Enorama diapir but also other diapirs within the Flinders Ranges.
BHI Summary of State Heritage Place APPROVED DATE: 18-JUN-2026 |
| Subject Index |
Landscape area - Geological Site |
| Class |
State |
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|
| STATUS |
| Status Code |
REG - Confirmed as a State Heritage Place in the SA Heritage Register |
| Status Date |
09-OCT-1997 |
| REFERENCE |
| LGA |
Unincorporated SA |
| State Heritage ID |
16229 |
| Heritage Number |
86 |
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| SECTION 16 INFORMATION |
| Section 16 |
c - it may yield information that will contribute to an understanding of the State's history, including its natural history
|
| PLAN PARCEL & TITLE |
| As listed in the SA Heritage Register |
| Plan Parcel & Title Information |
CR 6228/876 D93043 Q65,CR 6228/877 D90825 Q61 |