Search Results for: oman

Monday Geology Picture: Ferromanganese-Encrusted Boulder from the Ninetyeast Ridge, Indian Ocean

Two weeks ago I posted a picture of a fragment of boytroidal ferromanganese crust that was dredged from the Ninetyeast Ridge in the Indian Ocean. Today I thought I would share a few pictures of a ferromanganese-encrusted boulder that was recovered from the Ninetyeast Ridge during the same 2007 expedition. Ferromanganese crusts actually caused some … Continue reading Monday Geology Picture: Ferromanganese-Encrusted Boulder from the Ninetyeast Ridge, Indian Ocean →

Monday Geology Picture: Botryoidal Ferromanganese Crust from the Ninetyeast Ridge, Indian Ocean

For this week’s geology picture, I thought I would share a picture of a neat botryoidal (grape-like texture) ferromanganese crust that was recovered during dredging along the Ninetyeast Ridge in the Indian Ocean in 2007. Ferromanganese crusts and nodules are commonly deposited in the ocean. They often form botryoidal shapes, such as the example above.

Monday Geology Picture: Listwanite Hills in the Sultanate of Oman

Today I am going to share some pictures of listwanite (also sometimes spelled listvenite, listvanite, or listwaenite), an unusual  rock type that I bet even some of the well-educated geologists who read this blog have never seen or even read about. I don’t even think there’s a wikipedia entry about listwanite. Perhaps I’ll write one … Continue reading Monday Geology Picture: Listwanite Hills in the Sultanate of Oman →

Monday Geology Picture: Fossil Seashells at Barr Al-Hikman, Oman

For this week’s Monday Geology Picture post, I thought I would share some more pictures from my trip in January to Barr Al-Hikman, Oman. A few weeks ago, I posted about some crabs and their traces at Barr Al-Hikman. This week I am sharing some pictures of some large, beautiful, fossilized seashells which we observed … Continue reading Monday Geology Picture: Fossil Seashells at Barr Al-Hikman, Oman →

More Crabs in the Sand at Barr Al-Hikman, Sultanate of Oman

My post yesterday about the crab houses in the sand at Barr Al-Hikman turned out to be quite popular, so I thought I’d share some more pictures of crabs and crab houses and other crab life traces which I observed at Barr Al-Hikman. In addition to the Ocypode saratan “ghost” crab (thanks for the identification … Continue reading More Crabs in the Sand at Barr Al-Hikman, Sultanate of Oman →

Monday Geology Picture: Crab Houses in the Sand at Barr Al-Hikman, Sultanate of Oman

Last month I participated in a three-day geology field trip to Barr Al-Hikman, a peninsula in Oman. On the peninsula there are numerous beautiful beaches and interesting geological features such as sabkhas and paleolagoons. We visited the peninsula to look at some recent carbonate deposits and also to investigate some modern beach features, such as … Continue reading Monday Geology Picture: Crab Houses in the Sand at Barr Al-Hikman, Sultanate of Oman →

Mantle Peridotite in the Samail Ophiolite, Oman

Over the past couple of weeks, I posted pictures of pillow basalts and sheeted dikes in the Samail Ophiolite, Oman. To round out the crustal ophiolite sequence, I thought I would post a couple of pictures of mantle peridotite in the Samail Ophiolite. As you can see in the below pictures, mantle peridotite in the … Continue reading Mantle Peridotite in the Samail Ophiolite, Oman →

Sheeted Dikes in the Samail Ophiolite, Oman

Last week I posted a picture of pillow basalts in the Samail Ophiolite, Oman. I recently visited Oman for a geology conference, and I was fortunate enough to see pillow basalts and many other wonderful geological sights in the Oman mountains and beyond. When I posted the picture of pillow basalts, geoblogger Ron Schott asked … Continue reading Sheeted Dikes in the Samail Ophiolite, Oman →

Monday Geology Picture: Pillow Basalts in the Oman Ophiolite

I’m currently in Oman for a geology conference, so today’s geology picture is one I recently took here in the Samail Ophiolite. The picture shows some weathered and fractured pillow basalts with a pencil for scale. These are not the best-looking pillow basalts in the ophiolite. The freshest ones are found in the Geotimes sequence … Continue reading Monday Geology Picture: Pillow Basalts in the Oman Ophiolite →