Ripple marks in the Cambrian of Tennessee, USA.

Ripple marks are moderately common sedimentary structures in the rock record. They indicate the presence of a current at the time of sediment deposition. Asymmetrical ripples have a long side and a short side, as seen in cross-section. Symmetrical ripples are more or less evenly shaped in cross-section view. Asymmetrical ripples form in a one-direction current by wind or water. Symmetrical ripples for in a back-and-forth, two-direction current in very shallow water by wave action.

This rock is eroded from the Rome Formation in northeastern Tennessee. The Rome Formation in the Appalachian Basin ranges in age from upper Lower Cambrian to Middle Cambrian to possibly lower Upper Cambrian. These ripples are close to being symmetrical.

Stratigraphy: float from the Rome Formation, upper Lower Cambrian

Locality: roadcut on the northeastern side of Route 25E through Comby Ridge, northwest of Raven Hill & southeast of Tazewell, Tennessee, USA

Architecture In Action

Pictures taken on a walk along the San Francisco Embarcadero and around the Ferry Building.

The Suspension Bridge portion of the Oakland - San Francisco Bay Bridge.

March, 2008

12.19.2010 Automatic Aid with Alexander Fire

I took pictures of the buildings along George Street, Sydney, Australia

Interesting structure - reminds me of a big birds nest - this is near the O2

De Anza Trail, Desert Meadow Park

The upper windows in the Church of the Nativity in Bethlehem

Gigaom Structure Data event at Pier 60, Chelsea Piers in New York, NY on Wednesday March 19, 2014. (© Photo by Jakub Mosur).

Gigaom Structure Data event at Pier 60, Chelsea Piers in New York, NY on Wednesday March 19, 2014. (© Photo by Jakub Mosur).

We're looking straight up at the entrance. Each of the interior splines at the apexes of the triangular facets duplicates the feature seen here. The colored glass inserts run from bottom to top (and are much more effective in the interior space).

IMG_9319e; Entrance Apex

Processed with VSCO with 6 preset

Yoshida's Sand In The City

Gigaom Structure Connect conference at Mission Bay Conference Center in San Francisco, CA on Tuesday & Wednesday October 21-22, 2014.

Gigaom Structure Data event at Pier 60, Chelsea Piers in New York, NY on Wednesday March 19, 2014. (© Photo by Jakub Mosur).

Structures?

prints available soon.

Structure

Final project part one of three- A tryptic of three different times of day to observe the quality of light. I went to an old abandoned quarry. This was done in the morning. Gouache on paper. 12" x 15"

Through clouds I dream

A flight that brings me near

Basking in your warmth

But forbidden to touch.

Not sure what this thing on the Avenue of the Dead is, but it was kinda cool looking.

Lake Eerie as viewed from Edgewater Park, Cleveland OH

"Stone structures"

Combination of 3 exposures

Gigaom Structure Data event at Pier 60, Chelsea Piers in New York, NY on Wednesday March 19, 2014. (© Photo by Jakub Mosur).