Heritage Cases

THIS IS THE ARCHIVE FOR SAHRIS 1.0


THIS SITE IS NOW AN ARCHIVE AND IS NOT SUITABLE FOR MAKING APPLICATIONS

Please be aware that no content and application creation or changes to information on this version of SAHRIS will be retained.

To make applications or utilise SAHRIS for the creation of information, please use the new site:

https://sahris.org.za

Changes to SAHRIS!

The South African Heritage Resources Information System (SAHRIS) has undergone a generational upgrade and restructure. These changes to the site include, but are not limited to:

  • A new & modernised look and layout
  • Improved site usage flows with respect to applications and content creation
  • Improved site performance and stability

Launch for the new version of SAHRIS occurred on Monday the 30th of October 2023.

The new site can be found here:

SAHRIS | SAHRIS

SAHRA Application Closure

Please note the following concerning applications submitted to the South African Heritage Resources Agency (SAHRA) during the December 2023 to January 2024 period.

The full notice is available here: Notice

Special Notice

Following comments received on the proposed Revised Schedule of Fees for applications made to the South African Heritage Resources Agency (SAHRA), made in terms of Section 25(2)(l) of the National Heritage Resources Act No. 25 of 1999 (NHRA) and published in the Government Gazette of 22 July 2022, SAHRA hereby publishes the final Revised Schedule of Fees for Applications made to SAHRA. Applications for provision of services submitted to the South African Heritage Resources Authority (SAHRA), in terms of the National Heritage Resources Act, No. 25 of 1999 (NHRA) must be accompanied by a payment of the appropriate fee, taking effect from 1 January 2023

Revised Schedule of Fees for Applications made to the South African Heritage Resources Agency (SAHRA)

Alexandria Formation Taphonomy Wits

CaseViews

CaseHeader

Status: 

HeritageAuthority(s): 

Case Type: 

ProposalDescription: 

We intend to study geology and taphonomy in the Alexandria Formation. Our palaeontological work will involve studying modifications (e.g. sponge borings, feeding marks) on Miocene and Pliocene invertebrate fossils, to determine whether modifications took place in terrestrial/marginal/shallow marine setting. This will be combined with stable isotope chemistry of sedimentary precipitates to constrain modification processes. This work will take place in the Eastern Cape.

Expanded_Motivation: 

The Alexandria Formation was deposited in the Miocene and Pliocene (le roux, 1987), and preserves numerous invertebrate fossils as well as trace fossils. Many fossils are subject to post-depositional modification either by biotic agents (e.g. sponge borings) or abiotic processes (e.g. replacement mineralisation, abrasion). We wish to combine geological and palaeontological investigation to constrain the modifications that took place in the terrestrial, intertidal, and marine realms. By examining and constraining the occurrence of post-depositional modification, we hope to construct a local sea level curve. This will allow further work on other Miocene-Pliocene shoreline deposits in South Africa and potentially, the construction of a regional sea level curve from which eustatic signatures can be determined. This is important because the latest Miocene corresponds to global regressions and changes in ocean chemistry following the isolation of the Mediterranean Sea (Clauzon et al. 1996; Krijgsman et al. 1999; Duggen et al. 2003). These regressions have so far not been identified in the South African rock record, despite the presence of contemporaneous deposits.

ApplicationDate: 

Monday, March 23, 2015 - 11:30

CaseID: 

7401

OtherReferences: 

ReferenceList: 

CitationReferenceType
Clauzon, G., Suc, J-P, Gautier, F., Berger, A., and Loutre, M-F. 1996. Alternate interpretation of the Messinian salinity crisis: controversy resolved? Geology, 24, 363-366
Duggen, S., Hoernle, K., van den Bogaard, P., Rupke, L., and Morgan, J., 2003. Deep roots of the Messinian salinity crisis. Nature, 422, 602-606
Krijgsman, W., Hilgen, F.J., Raffi, I., Sierro, F.J., and Wilson, D.S. 1999. Chronology, causes and progression of the Messinian salinity crisis. Nature, 400, 652-655
Le Roux, F. G. 1987. The Lithostratigraphy of the Alexandria Formation, in Lithostratigraphic Series, edited by S. A. C. S. (SACS), pp. 1-18, SACS, South Africa
 
 

Search form