OUR recent visit to the Chirundu Fossil Forest, located 143 kilometers from Lusaka, revealed a fascinating story of climate change. The two-hour drive to this tourist destination was worthwhile, as it offered a glimpse into the region’s rich history.
Our family’s recent trip to Siavonga district in Southern Province included a stop-over at the Chirundu fossil forest, situated in the lower Zambezi valley. Our interaction with Mr Amos Kalenga, Conservation Assistant for Chirundu Fossil Forest under the Heritage Conservation Commission, was enlightening.He explained that the formation of the Chirundu fossil forest is a direct result of climate change.
The site appears simple at first glance, but a closer look reveals a complex history, taking one to the Jurassic period.
Mr Kalenga took us on a tour of the site, explaining that the trees at the Chirundu fossil forest turned into rocks over 150 million years ago. He noted that the climate in the area was once suitable for growing coniferous trees, which thrive in cold climates.
However, as the climate changed and became hotter, the trees died, and the wood eventually turned into rock.The fossilized trees were covered in sand, which contained silica. Over time, the silica replaced the tree cells and fibers, turning the wood into rock. “Because of water which was there, the silica went inside the trees and replaced the cells and fibre of the trees. All the tree fibres were replaced by silica and this is how the trees turned into rocks,’’ he explained. Mr Kalenga explained that the annual growth rings on the fossilized trees can be used to determine their age.
The Chirundu fossil forest covers an area of 2 square kilometers and features two 30-meter-long tree trunks that have turned into rock. The site has been managed by the Heritage Conservation Commission since 2000.
Mr Kalenga emphasized that the fossils are protected, and anyone found in possession of them can face fines or imprisonment. “ If you are found in possession of these fossils, they would be fined or imprisoned as provided for under CAP 173 of the Laws of Zambia,’’ he said.
In conclusion, our visit to the Chirundu fossil forest was an eye-opening experience that highlighted the impact of climate change on our environment. The site is a valuable educational resource, and we appreciate the efforts of the Heritage Conservation Commission in preserving this natural wonder.
Unfortunately, the area is facing a challenge due to encroachment by local residents and investors. Mr. Kalenga warned that those found violating the conditions of staying near a gazetted area should not blame the government, as the law is clear that the Chirundu Fossil Forest is a protected area.
Indeed, one would see for themselves the mushrooming of thatched houses and other un organized structures within the precincts of the site, which is a source of worry.
