Environmental Pressures Influencing Living Stromatolites in Hamelin Pool, Shark Bay, Western Australia

A study of Hamelin Pool, Shark Bay, reveals significant environmental pressures shaping the growth and morphology of living stromatolites. The research identifies regional trends of increasing salinity, greater temperature range, and decreasing energy moving southward from Faure Sill to the Nilemah Embayment, alongside seasonal paradoxes where salinities rise in wet winter months and drop in dry summer months. These patterns suggest groundwater influx along the Hamelin Pool shelf, potentially influencing stromatolite morphology, internal fabric, and microbial communities. The findings provide a framework for understanding extrinsic factors affecting stromatolites, offering insights into their development throughout Earth's history.

SUOSAARI, E. P., REID, R. P., ARAUJO, T. A. A., PLAYFORD, P. E., HOLLEY, D. K., MCNAMARA, K. J., & EBERLI, G. P. (2016). ENVIRONMENTAL PRESSURES INFLUENCING LIVING STROMATOLITES IN HAMELIN POOL, SHARK BAY, WESTERN AUSTRALIA. Palaios, 31(10), 483–496. https://doi.org/10.2110/palo.2016.023