Heritage Commission Study Uncovers Saudi Arabia's Ancient Green Oasis History From Eight Million Years Ago

The Heritage Commission has unveiled a scientific study that reveals Saudi Arabia was once a lush green oasis eight million years ago. This conclusion comes from analysing 22 cave formations known as "Duhool Al-Summan." The study, published in the journal Nature, provides an extensive climate record for the Arabian Peninsula.

Dr. Ajab Alotaibi, director general of the commission's antiquities sector, highlighted the significance of this research. He stated that it offers one of the world's longest climate records based on cave deposits, spanning eight million years. This record is crucial for understanding biodiversity and species movement across continents.

The study is part of the Green Arabia Project, aiming to explore the region’s natural history. It involved 30 scientists from 28 organisations, including the Heritage Commission, Saudi Geological Survey, and King Saud University. International partners included institutions from Germany, Australia, Italy, the UK, and the US.

Researchers used advanced geochemical analyses to date climatic shifts in these caves. Techniques like oxygen and carbon isotope testing helped trace rainfall and vegetation changes over millions of years. Uranium-Thorium and Uranium-Lead dating pinpointed humid phases back to the late Miocene era.

The findings reveal that Saudi Arabia once supported fertile ecosystems. These conditions facilitated animal and early human migrations between Africa, Asia, and Europe. The study confirms that humid phases enabled species dispersal across continents.

Fossil evidence supports this by showing now-extinct animals like crocodiles and hippos thrived in ancient rivers and lakes in Arabia. These discoveries highlight how environmental changes shaped the region's history.

Future Research Potential

The Heritage Commission emphasised its commitment to advancing research in this field. Despite these significant findings, many cave systems remain unexplored in Saudi Arabia. They hold potential for future scientific breakthroughs about the region's ancient past.

This study marks a milestone for Saudi Arabia’s efforts to document its natural heritage. It contributes to a deeper understanding of how climatic changes have influenced the Arabian Peninsula over time.

The commission plans further studies to preserve Saudi Arabia’s natural and cultural heritage while fostering international collaboration in scientific research.

With inputs from SPA