Where is Corruption chasm or any corruption area?

I saw a few pictures of the Corruption area on Wikis and forums and started to search for that in my world. I covered from cost to cost and couldn't find it. After opening the world in the TEdit to search for it, again, I couldn't find it.
Could you help me identify it on the picture attached to this question? Note: if you need a better zoom on the picture, let me know.
Best Answer
Taken directly from the Corruption page on Terraria's wiki:
The corruption is the counterpart to the Crimson biome. A generated world will contain only one of the two, chosen at random during world creation, each with a 50% chance of occurring.
Just past your ice biome you have a Crimson biome. Instead of fighting the Eater of Worlds, you get to fight the Brain of Cthulu.
Despite not having any corruption in your world, it is possible to create artificial corruption biomes. Generate new worlds until you find one with corruption in it instead of Crimson. Once you do, defeat the Eye of Cthulu. It will drop several corrupt seeds you can use to plant in your original world.
Pictures about "Where is Corruption chasm or any corruption area?"



Where is the Corruption biome in Terraria?
Prior to Hardmode, it will only naturally exist in the lowest parts of Chasms, and only if they are deep enough to reach the Cavern layer. Regardless, once the Wall of Flesh is defeated, more Underground Corruption will be created at and below the cavern layer.How does the Corruption spawn in Terraria?
Corruption can be created or spread artificially using Corrupt Seeds, Unholy Water, or the Clentaminator with Purple Solution, obtainable from the Steampunker during a Blood Moon in Corruption worlds (she sells Red Solution in a Crimson world instead).Can you get Corruption in a Crimson world?
As of version 1.4 of the game, it is possible to create an artificial Corrupt biome in a Crimson world without the use of another world. To do so, one must buy Corrupt Seeds in Hardmode from the Dryad while in a Graveyard.How far down does Corruption spread?
Corruption, Crimson, and Hallow can jump up to three blocks to affect other blocks, and Corruption and Crimson can spread farther by using vines. You can prevent them from doing so by digging a 4 block wide channel.Containing Evil Biomes - Corruption, Crimson \u0026 Hallow Spread Management - Easy! | Terraria 1.4.1.2
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: Pixabay, Anete Lusina, Anete Lusina, Anete Lusina