• US$140

• 5 designs

• 2 designers

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Infographic Design Brief

Looking to create an infographic that tells the story of a giant rock that is featured in the architecture of a friend's mountainside home. I have pics of the rock and a geologist's description. Infographic does not need to tell the entire story with all the details - I am looking for a designer to pick out the most interesting, compelling parts of the rock's history and creatively illustrate it - all while keeping it simple.


The entire mountain range is less than 20 million years old, however, the rock is more than 1.75 billion years old. Not surprisingly, the rocks are quite deformed, folded, tilted, metamorphosed, fractured and weathered. The rocks in the house at Foothill Drive and Tatum dip about 80 degrees to the southeast.

However, the tilted rocks are quartzite, which happens to be the most physically and chemically resistant rock on earth, made of nearly pure quartz sand grains (chemically equivalent to inert Pyrex glass).

The sand grains themselves were eroded from even older terrains of unknown origin, but likely from rocks near Canada or Siberia, rocks themselves at least 2.3 to 3 billion years old. The sand grains were transported by a river to the margin of our North American continent some 1.75 billion years ago and laid down in sheets of well-sorted sand. That is why the layers look so homogenous, albeit fractured.

Deposition continued and the sandy layers were subsequently buried. Over time the sand turned to sandstone. Around 1.65 billion years ago this margin of North America collided with another continent and buckled the crust extensively forming folds, sheared rock, tilted rock and faults. This is a well-known event in Arizona referred to as the Mazatzal Orogeny (named after the Mazatzal Mountains near Rye, AZ).

The sandstone was metamorphosed into quartzite prior to and during this event, a metamorphic rock. Until the Phoenix Mountains formed ~20 million years ago, the tilted quartzite layers have remained essentially in place, tilted as is, and unweathered for nearly 1.7 billion years, which is hard to imagine, but that’s geology. The quartzite on this part of the Preserve represents the top of a thick sequence of metamorphosed sand, mud and volcanic rocks about 8 to 10 miles thick! Okay, that is hard to imagine.

So to summarize, the rock is 1.75 billion-year-old sandstone, made of even older sand grains of unknown origin, metamorphosed ~1.65 billion years ago, buried for ~1.6 billion years until about ~20 million years ago and presently lay exposed to weathering and erosion, and of course, admiration and fascination.

Target Market(s)

Highly educated adult business professionals

Industry/Entity Type

Architecture

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