Unvalued Vivaciousness

Hello all, I'm Katrina

Currently, I am a student at a Texas University attempting to earn my degree in Geology. If things go well I plan to pursue a masters. My choice to go to college was independent of my father and his family's wishes, so I'm heading this out mostly on my own.

I'm a first generation American, my father and his family came from El Salvador during the early 80s. They've been sticking it out in Texas ever since. Sadly, despite my heritage I do not speak Spanish as I didn't have much opportunity to learn it.

My blog is typically filled with feminist politics (concerning only equality, not supremacy), reptiles, other animals, cats, things I find humorous, things I find artistic, geology, Doctor Who, Star Trek, Pokemon, and overall interesting news and science! If I think it's cool, interesting, funny, or important, it's going to show up here!

Occasionally I will post my own "art" and photographs, and you should definitely reblog them, because they're awesome. Keep a lookout for those.

Lastly, I should mention that I am commonly correcting those who are hypocritically spouting discrimination while fighting discrimination (because it's happening so often now, I feel like I should include this shows up from time to time). I do not tolerate people who hate and thus discriminate people in any way, be they white, hispanic, black, indian, male, female, bi, gay, striaght, cis, trans, or what have you. Everyone deserves to be treated with equality and respect.

Do not contact me with an ask if its purpose is to fuel your frivolous ego with a pointless argument.

Landon at Landothelost






OH MY GOD soooo I don’t know why but i do really random mundane things online during my insomnia and tonight I was looking at Facebook posts by customers on the wall of the theater I work at and there’s one complaint from the first week of June who saw X-Men Days of Future Past and the air conditioning in the theater had broken so it was crazy hot in there. buttttt they also complained about a server who when asked how to fix it shrugged it off and said “i dunno how”

dat was me


cats are morons and i want fifty of them

(via booty-had-me-like-upupupu)


Kung Fu Panda: voice stars

Sometimes names don’t do it for me. Thank you

(via neilnevins)



Colour: dark, brown, greenish-black to black coloured mica.

Found in: worldwide

Named after the French physicist, Jean Baptiste Biot (1774 - 1862), who studied the optical properties of the micas.

Starsign: scorpio

Photograph: taken from Mindat, copyright © Fritz Schreiber

More photographs can be found here: http://www.mindat.org/gallery.php?min=677

Text copyright: © madcatwoman 2013, www.madcatwoman.co.uk

For detailed healing properties and photographs of many of the more common gemstones and minerals, please visit the Madcatwoman Enterprise Facebook page:



Nepheline with hackmanite (peach), sodalite, biotite, calcite, zircon (yellow) under ultraviolet (by dougbank)


The Tapeats Sandstone

Throughout the Grand Canyon area, the Great Unconformity represents at least 200 million years of time where no rocks were deposited. The seas retreated, leaving the basement rocks to erode away. But, 525 million years ago, the seas returned and the geologic record resumed.

The Tapeats Sandstone is the first unit on top of the Great Unconformity. The unit represents a shallow marine deposit, made up of sediments deposited in settings like modern-day sand bars, beaches, and channels. 

The unit’s maximum thickness is about 250 meters, but he Tapeats actually isn’t deposited everywhere. In some places, the next unit up is actually deposited directly on top of the Grand Canyon Supergroup rocks. That means at the time of Tapeats deposition, there was substantial topography in the area. There were mesas and hills made up of the strong quartzites of the Supergroup and of the Vishnu Schist basement standing as islands amongst the channels where the sandstone was deposited.

The Tapeats also, as you see here being pointed at by this helpful person from Flickr, contains a variety of larger pebble and cobble-sized clasts. Many of these are made of familiar rocks; components of the Vishnu Schist and the Shunimo Quartzite, strong units deposited previously, are reworked into the Tapeats. The presence of these large clasts also suggests high-energy flows, like debris flows or turbidites, carried the clasts out to sea.

The Tapeats contains a variety of Cambrian-era fossils and trace fossils, including tracks of creatures like trilobites. It also contains the mineral glauconite, an iron-bearing mineral that forms sand-sized grains and also is likely a remnant of life, either of waste or of bodies after death. Various other sedimentary structures, like cross bedding and ripple marks are found as well.

As a strong, hard to erode sandstone, the Tapeats stands out and forms the strong platform around the central gorge in many areas of the Canyon. The Tapeats also marks the beginning of a long period of marine deposition both here and throughout the Western U.S. Although the rock types change slightly, sandstones correlative to the Tapeats can be found throughout the West, again as far north as Montana, all indicating the seas rising and beginning to claim the continent.


Image credits (Creative Commons):

References: http://3dparks.wr.usgs.gov/coloradoplateau/lexicon/tapeats.htm

Oh you have got to visit the Tapeats on Google Streetview.

Previous articles:


12 magnificent views of travertine terraces around the world
Travertine terraces are some of the most bizarre-looking geological formations on Earth. The rock that makes up these unique formations is a type of limestone commonly deposited by mineral springs through a process of rapid precipitation of carbonate minerals.