The Cretaceous-Paleogene (K-Pg) Extinction Event, also known as the K-T Extinction, was the mass extinction of three-quarters of the plant and animal species on Earth approximately 66 million years ago. The event caused the extinction of all non-avian dinosaurs. Most other tetrapods weighing more than 25 kg (55 lb.) also became extinct, with the exception of some ectothermic species such as sea turtles and crocodilians. It marked the end of the Cretaceous period, and with it, the Mesozoic Era. In the geologic record, the K-Pg event is marked by a thin layer of sediment called the K-Pg Boundary, or K-T Boundary, which can be found throughout the world in marine and terrestrial rocks. The boundary clay shows unusually high levels of the metal Iridium, which is more common in asteroids than in the Earth's crust.
As originally proposed in 1980, by a team of scientists led by Luis Alvarez and his son Walter, it is now generally thought that the K-Pg extinction was caused by the impact of a massive asteroid 10-15 km (6-9 mi) wide 66 million years ago causing the Chicxulub crater. This devastated the global environment, mainly through a lingering impact winter which halted photosynthesis in plants and plankton. The impact hypothesis, also known as the Alvarez hypothesis, was bolstered by the discovery of the 180 km (112 mi) Chicxulub crater in the Gulf of Mexico's Yucatan Peninsula in the early 1990s, which provided conclusive evidence that the K-Pg boundary clay represented debris from an asteroid impact. The fact that the extinctions occurred simultaneously provides strong evidence that they were caused by the asteroid. In October 2019, researchers asserted that the event rapidly acidified the oceans and produced long-lasting effects on the climate, detailing the mechanisms of the mass extinction.
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The cache is not at the posted coordinates, but you may begin your search from any point in the world!
This Wherigo converts your player into a virtual version of the "Reverse Cache Box" which tells you the distance to the cache, but not the bearing. You may begin your search from any spot in the world using your Smartphone or Whereigo compatible GPS to navigate to the cache.
A tutorial on Reverse Wherigo caches can be found here: Reverse Wherigo Tutorial.
This cartridge is available to download from the wherigo.com website.
Your task is to find the cache by periodically querying your Reverse Cache Box for the distance to the final location. Try to use your Reverse Cache Box as few times as possible. All instructions and necessary information needed to complete the cartridge is contained within it. The cartridge is multilingual.
To begin, you will have to type this code into your player:
813388
285353
146185
It is suggested that you take the code with you on your journey. It will be needed if it becomes necessary to restart your player for any reason.
When you have reached the final, you will be given some statistics on your quest. If you wish, you may enter the details into your log, and also post the number of times you calculated the distance.
At the end of the game, you will be given a personal pass-code which you can enter into the cartridge if you select "create" rather than "play" when you start the cartridge. Save this code, and if you ever wish to create your own reverse cache, you can do so.
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This cache is located in the Mojave Desert, where temperatures can be extreme and traveling can be dangerous. It is highly recommended that you have a high-clearance vehicle with four-wheel drive. Before heading out, please let someone know where you are going, and pack extra food and water in your vehicle.