![](https://cdn.myportfolio.com/c2f4482d54083544c50d73c798468aff/9696d0d646117fb7c5acb4cf_rw_1200.jpg?h=4a8e1cac3384723d0902507ba5e99f23)
Tasmania - Lichens on rocks at Bay of Fires - April 2007
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Senegal, Djoudj National Bird-Sanctuary Park - January 2010
![](https://cdn.myportfolio.com/c2f4482d54083544c50d73c798468aff/ed1b252e2e98c8c66920e427_rw_1920.jpg?h=c1f38120bc63f2c67d925cae44faf86c)
New Zealand, Mud Pools in Rotorua, December 2005
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New Zealand, The Artist's Palette in Rotorua, December 2005
![](https://cdn.myportfolio.com/c2f4482d54083544c50d73c798468aff/0b0cc0b1afe43d6a0b7ee5a5_rw_1920.jpg?h=2dc355e0807354a676fba4cd59f01038)
Egypt, White Desert near Farafra, April 2009
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Jordan, Sandstones in Ancient City of Petra, April 2009
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Jordan, Sandstones in Ancient City of Petra, April 2009
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Ethiopia, Dallol Geothermal Field, January 2011
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Ethiopia, Danakil Depression, Bishofite emergence, January 2012
![](https://cdn.myportfolio.com/c2f4482d54083544c50d73c798468aff/b9b263acd6b4a410d6ab9f63_rw_1200.jpg?h=5d4854967c2c7b52a813a4b580d4ddf7)
Ethiopia, Erta Ale Volcano, January 2011
![](https://cdn.myportfolio.com/c2f4482d54083544c50d73c798468aff/bf5eb41ae10a603b718bdb90_rw_1200.jpg?h=ce99806a094a9f0655929ae5f4a860a4)
Ethiopia, Danakil Depression, Bishofite emergence, January 2012
![](https://cdn.myportfolio.com/c2f4482d54083544c50d73c798468aff/7ba9c0a007a8307f196e3667_rw_1200.jpg?h=1ad98e01e56d76744f9be4c9e823a083)
Ethiopia, Dallol Geothermal Field, January 2011
![](https://cdn.myportfolio.com/c2f4482d54083544c50d73c798468aff/d5387c2519fd4693eeebd8f1_rw_1920.jpg?h=a725360c5291a7e2c25a2c8d5213554c)
Ethiopia, Erta Ale Volcano, January 2011
![](https://cdn.myportfolio.com/c2f4482d54083544c50d73c798468aff/0d4059180a784cfcdd23aebd_rw_1920.jpg?h=314552ad60a2379b9deee018de5e1004)
Ethiopia, Danakil Depression, Black Lake, January 2011
![](https://cdn.myportfolio.com/c2f4482d54083544c50d73c798468aff/36108ccf7f40b530da54b118_rw_1920.jpg?h=2f2aa785535464e0701fc9eb066b693b)
Egypt, Libyan-Sudan Border, Wadi Sura, Foggini Cave, April 2009
![](https://cdn.myportfolio.com/c2f4482d54083544c50d73c798468aff/2d47f1d25bec872dc5515ffb_rw_1920.jpg?h=25cc03701e19f01188c87e2a7daa7d24)
Iceland, sometimes volcano ash desert figures throw themselves into some African dance ..., August 2010
![](https://cdn.myportfolio.com/c2f4482d54083544c50d73c798468aff/257277b2d9fc0fcd4dc2e6de_rw_1920.jpg?h=999c304533ab9f802b368b4387bd273e)
Namibia, Lichens at Messum Crater, August 2012
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Namibia, Lichens at Messum Crater, August 2012
![](https://cdn.myportfolio.com/c2f4482d54083544c50d73c798468aff/004e2c63786057b5f113b241_rw_1200.jpg?h=b38886883ff47a126e3eedb3f865c424)
Namibia, Lichens at Messum Crater, August 2012