Artistic License - Geology
You've Seen It a Million Times
. A Disaster Movie
features an earthquake, volcano or some other ground-based phenomenon and does it in a relatively entertaining way. Then the Fridge Logic
hits that Geology Does Not Work That Way!
Artistic License Geology is the catch-all term for where a work shows geological phenomenon, but does so inaccurately.
For earthquakes, fissures do not chase B actors or swallow entire cities whole without a trace. For volcanoes, outrunning the lava flow in Real Life
is as easy as picking up your pace to a brisk walk. Rarely does it move any faster than a few kilometers per hour across open ground; it needs to be constricted to move faster, and then it's a simple matter of walking right or left. On the other hand, you cannot Outrun the Pyroclastic Flow
. Those travel at up to 700 kph and are essentially made of extremely hot rocky air, although you could attempt to get beyond the extent of the flow if you had enough advance warning. Speaking of which, it's not the lava that kills you, it's the tremendous and far reaching heat.
In addition to quakes and volcanoes, this trope also covers any abuses of the field of geology including getting rocks, minerals, or whole processes wrong.
This is the supertrope of California Collapse
. Compare Artistic License - Biology
, Artistic License - Physics
. Contrast Shown Their Work
. See also All-Natural Gem Polish
Anime and Manga
- In Code Geass, when the F.L.E.I.J.A. bomb is deployed it leaves a 1300 meter-deep crater, but the now exposed terrain is uniform and absent of geological layers. It's possible the weapon burns the exposed earth to a uniform appearance, but that appearance is regular soil brown.
- Many old Marvel Comics stories had characters visiting Subterrania, a land located at "the center of the Earth." The place was later Ret Conned as being a cave system not far from the surface.
- The Magical Land realm of Skartaris in DC Comics' The Warlord is located in the center of a Hollow World Earth as a tribute to the Pellucidar novels of Edgar Rice Burroughs.
- One dinosaur comic has paleontologists find "the most complete T. Rex skeleton ever", and carbon-date it to make sure it's genuine. Carbon dating is not used on objects older than 30,000 years.
- Not only is it not used, but in objects that old there's no carbon left; it's been completely mineralized.
- Volcano has the titular feature pop out of the La Brea Tar Pits in Los Angeles- while the area is tectonically active, the faults are not the type that generate volcanoes, being too far below the surface. The LA Basin as a whole has no volcanic features newer than a couple dozen million years.
- Dante's Peak, a dueling movie with Volcano, made more of an attempt to be accurate but still pick and chose things to be dramatic (the USGS has a detailed response somewhere.) For example, there is fluid lava during what is otherwise a large explosive eruption, (the two are exclusive), and there's a pyroclastic cloud chase scene where the vehicle has way too little lead time.
- The volcano part of The Movie of Congo had many geologic sins (diamonds in basalt, etc), but often gets faulted for one part that was actually accurate; the speed of the flow. The Congo is the only place in the world where lava actually can move at freeway speeds due to its consistency (think mud bath, only it would melt your face instead of cleansing your pores).
- Waterworld explicitly attributes the Earth's submerged status to global warming, but all the ice in the world melting would produce only a 60m (180 ft) rise in sea level, which would suck for low-lying coastal areas, but is not nearly enough to create the ocean planet depicted.
- Crack In The World from 1965 suffered from a fast case of Science Marches On. It was in line with accepted theory at the time the film was made, but the time the film was released geology was undergoing a revolution, and the Plate Tectonics theory was finally gaining acceptance, making much of the geology in the movie nonsensical as the title went from being regarded as possible apocalypse to normal state of the Earth. (Geothermal energy was also a very new idea at the time of the film; now countries like Iceland use it routinely, and don't need atomic bombs to access it!)
- In Outlander, the protagonists trek through lava-filled tunnels in Norway. The Fennoscandian Shield which makes up Norway's land mass is one of the most tectonically stable areas in the world, and has had no volcanic activity for hundreds of millions of years.
- 2012 pretty clearly throws any accuracy out in favor of Rule of Cool. It would be easier to list the couple correct pits than the many, many wrong parts.
- In Gamera Vs Zigra, the main villain causes multiple earthquakes. The strongest earthquake in the film does a lot of damage, but most buildings are still left standing. This earthquake is said to have a magnitude of 18 on the Richter scale — More than 100,000,000 times more powerful than the strongest earthquake ever recorded. Such a quake is impossible (The scale itself goes only to 10, because anything above that is implausible) and would rend the earth apart.
- The Core was written entirely with Rule of Cool in mind. Some of the events made it clear that the writers had checked geology books while writing, but the plot makes it easily clear they were completely willing to throw it out when it got in the way of making a ship that went through the mantle like a submarine or death ray gaps in the magnetic field.
- Jules Verne's Journey to the Center of the Earth (and its many movie remakes and retellings) is a prime example of this. Verne was more concerned with following the Rule of Cool in this book than the current scientific understanding of the interior of the Earth. His narrator in this story, Axel, is a geology student, and is continually lampshading how utterly impossible what they are doing should be, with his explanations being consistent with 19th century geologic theories, and they still stand up pretty well.
- There is a The Hardy Boys novel wherein the boys experienced a powerful earthquake that lasted about a minute and threw them off their feet. We later find out that the quake measured "between 3 and 4 on the Richter scale." As any Californian could tell you, you might not even notice a tremor of that magnitude, especially if your attention was focused on something else at the time. And if you did notice it, your first reaction would not be "Yikes, earthquake!" but "That must be a pretty big truck."
- The Flood series has the Earth flooded by water from the mantle, loosely based on research that has shown that the deep crust is downright saturated with water and hydrogen gas, trapped by layers of impermeable rock above it, according to samples from the Kola Superdeep Borehole That there's enough of it to flood the planet with 50-60 km of water, or indeed have any way of escaping to the surface en masse is certainly less than likely, but there really is water down there, and lots of it. This is water trapped deep under continental crust, unlike in the novel (where the water is coming up from the mantle). In particular, the research that Baxter cites at the end refers to a mass of water-bearing rock, in which the actual water is a small percentage of the rock (although amusingly enough, the research paper author said he'd been getting letters and e-mails from people asking him if it was the water from Noah's Flood). In a similar vein, it's estimated that the total biomass of lithotrophs (rock eating bacteria) living in porous rock in the crust exceeds by an order of magnitude the combined biomass of all surface and oceanic life.
- Very common in Cthulhu Mythos stories. While some elements such as islands rising from the sea floor might be justified under Rule of Cool, Science Marches On, and/or An Eldritch Abomination Did It.
- In Wither, the first book of the Chemical Garden Trilogy by Lauren De Stefano, North America is the only land mass remaining because the government destroyed the other continents with some super weapon, so a only a few small, uninhabitable islands remain. The destruction of all the other continents has no ill effect on North America or the environment in general.
- Lampshaded in the Iron Druid Chronicles the druid Atticus Sullivan made a deal with the Native god Coyote to 'move some earth'. He finds out that this involves him magically placing a gold vein in a specific location where Coyote wants a mine to be built. He protests that while he can do this, it would be geologically impossible for gold to be found in that location. It would be so unprecedented that geologists all over the world will question the basic principles of the science. Coyote does not care.
- Arthur Conan Doyle's story The Terror of Blue John Gap has the semi-precious stone Blue John occurring in the wrong part of Derbyshire.
- His Sherlock Holmes story "The Adventure of the Blue Carbuncle" mis-uses the term "carbuncle", as it's actually a term for red garnets cut in a particular style. Possibly an in-universe example, if the stone in question had acquired a misleading nickname.
- If it's an original movie on SyFy, accuracy is the very least of their concerns.
- The made-for-Sci-Fi-Channel movie Magma: Volcanic Disaster. Volcanoes without precursory activity? Check. Fast moving lava? Check. Lava in places not normally found (such as above the actors head's when inside a tunnel)? Check. Among other things.
- In the miniseries 10.5, a volcano erupts without any hint of activity and a ground fissure chases a train, and the very title is not possible,note among many other errors. Immediately following the original airing of 10.5 a local news program of the same network showed a bunch of real-life geologists watching 10.5 and laughing their heads off.
- In one Steptoe And Son episode, the pair try to hawk a zircon to a half-blind fence as a diamond, figuring that he won't be able to see that it's fake. However, he "tests" it by smashing it with a hammer. This test wouldn't work in reality; a diamond would break at least as easily as a zircon.
- The first Interactive Fiction game Colossal Cave has a volcano in a limestone cave system.
- Depending on how the "volcano" is described, it could be possible. There's nothing preventing a volcanic intrusion from occurring in an area with caves, which might cause magma to enter the cave system. It would not create an actual volcano, though.
- Another problem is that because of the presence of the hot magma, the limestone should have recrystallized as marble, or melted to become a calcic igneous rock.
- This one does depend on the version, however. The very first version (which was far from finished) had fewer fantasy elements and was more a straight simulation of the real Bedquilt Cave in Kentucky, but later versions (including the first complete version, finished by Don Woods) included more fantasy and magic, including the volcano. The actual cave layout, being described by an experienced caver, is quite accurate to the real place.
- The mines of the Harvest Moon games. Even discounting the one set in a semi-active volcano, you have mines where you can find gold, silver and copper, along with emeralds, rubies, and diamonds on the same level. Older games at least tried to pay lip service to reality by having the precious gems and metals in different mines, but that was abandoned in favor of streamlining.
- Largely averted in Dwarf Fortress except for some minor issues with Convection Schmonvection and some dwarves being tough enough to drown in the lava before being burned in it.
- Lots of games have "diamond" weapons or armor, assuming that since diamond is hard, it must be very durable. In fact, diamond crystals have perfect cleavage in four directions and are therefore quite brittle: scratching a diamond is hard, but breaking it is not.
- An exception is Mass Effect 2, where the Normandy can be upgraded with armor composed of carbon nanotube sheets interwoven with diamond chemical vapor deposition, crushed into dense layers which compensate for diamond's brittleness.
- In The Elder Scrolls V: Skyrim, Corundum is depicted as a greenish ore that can be smelted into opaque dark gold ingots. Real Life Corundum is a crystalline form of aluminum oxide best known as "Sapphire" and "Ruby" when they are gem-quality. If you were to melt it, it'd turn into alumina, which is white.
- On the other hand, it may not be corundum as we understand it. For reference, the game also has ebony and glass as armor and weapon materials, both of which Morrowind explains as volcanic minerals instead of (in our world) wood and silicon dioxide.