
Researchers are studying the remains of prehistoric human settlements that now lie submerged beneath Europe’s coastal seas. More than 2,500 groups of submerged prehistoric artifacts, ranging in age from 5,000 to 300,000 years, have been found in the coastal waters and open sea basins around Europe.
Full Answer
What is at the bottom of the sea?
The bottom of the sea is far from uniform. As described by the National Oceanic and Atmospheric Administration, both the longest mountain range in the world and the tallest mountain peak can be found in the depths of the sea. There are deep trenches and chasms, flat plains, and even salt lakes under the waves.
Does sand stay at the bottom of the sea?
Sand does not stay at the bottom of the sea. In fact, sand in found most commonly around the margins of the seas and oceans and rarely in the deep ocean. Why? Because sand is from continental sources.
Are there any ruins under the ocean?
Not only does this include things that are underground, but deals with things that are underwater as well. There is so much about the ocean we do not yet know about, so it's no surprise that there are ruins waiting under there to be discovered!
Can we map the entire ocean seafloor?
The good news is the Nippon Foundation and the General Bathymetric Chart of the Oceans (GEBCO) have since been working to map the entire ocean seafloor as aligned with the United Nation’s Sustainable Development Goal #14: Conserve and sustainably use the oceans, seas, and marine resources. BBC recently did a story on their project, Seabed 2030.

What is the name of the Roman settlement at the bottom of the sea?
Baiae: A Roman settlement at the bottom of the sea
Why did the Romans come to Baiae?
The Romans came here for the same reasons we do: the sparkling Mediterranean, the balmy weather, the lush vegetation. They were also drawn to the area’s thermal springs – the result, of course, of the volcanic activity beneath their feet. When Baiae first entered the historical record in 178BC, it was as the Aquae Cumanae (Cumaean Waters).
What is the name of the volcano that erupts with a volume thousands of times stronger than an average volcano?
We were overlooking one of the fumaroles of Campi Flegrei , known in English as the Phlegraean Fields. One of 20 known “supervolcanoes” on the planet – capable of erupting with a volume thousands of times stronger than an average volcano – Campi Flegrei commands less notoriety than Mt Vesuvius, just 30km to the west.
What was the curse on Baiae's water?
A curse on Baiae’s water, love’s disgrace!”. As the Roman Republic lapsed into Empire, Baiae’s reputation only grew. In 39AD, Caligula built a bridge – made up of merchant ships linked together, then covered with earth – from Baiae to Pozzuoli, three miles long, then rode over it in a chariot.
Is Baiae a replica?
The underwater statues at Baiae are replicas but still feel "ghostly and sublime" (Credit: Pomona Pictures)
What happened when the English captured Jamaica?
When the English captured Jamaica from the Spanish, they purposely allowed it to fall into pirate hands. Surrounded by Spanish islands, any pirates who lived there would spend their time harassing Spanish ships rather than English ones, and the presence of armed men on the island at all times would stop the Spanish from conquering it. The city of Port Royal, the biggest settlement on the island, quickly became a pirate haven.
How many people were relocated to the Mohawks?
Before the arrival of Europeans, much of the area was the territory of the Mohawks. In all, over 6,000 people and over 500 buildings were relocated to newly planned towns. Contrary to what they’d been promised, residents complained that their new homes were not the same value as the ones they’d been made to give up.
How did the Welsh get permission to build the reservoir?
Controversially, they obtained permission for the plan by going through the Houses of Parliament rather than asking the local Welsh council for permission directly. Once the bill had passed Parliament, they issued a land purchase order and set about building the reservoir.
Can cities survive a flood?
Cities can survive most natural disasters, but being flooded under meters of water is usually a death sentence. On the other hand, being submerged can often protect their ruins for future generations better than the open air, resulting in some spectacularly preserved monuments like Shi Cheng in China, often called the “Atlantis of the East.”
How many apartments are there on the world's largest yacht?
With everything from sports facilities to a grocery store, this “largest residential yacht on the planet” is an apartment ship with 165 residential apartments, in total measuring 644 feet, 2 inches long and 98 feet wide.
What are the most famous marine engineering islands in the world?
The United Arab Emirates is a land home to some of the world’s most remarkable feats of marine engineering. Take the Palm Islands, a set of stunning marine archipelagos with rays and centerpieces that can be most fully appreciated from aerial views or space photographs. The islands include Palm Jumeirah, a precisely palm leaf shaped archipelago, Palm Deira Island, and Palm Jebel Ali, located along the Dubai coastline. Started in 2001, the developments contain a vast array of dwellings and commercial buildings constructed on the rays and stems. Breakwaters protect the construction works on the islands.
What was the most hospitable terrain during the Ice Ages?
During the Ice Ages some of the most hospitable terrain would have been on the shores that were subsequently covered by rising seas. Most of the spread and diversification of modern human peoples was between 100,000 to 10,000 years ago, and many of the answers about these period lie under coastal waters.
Is there an underwater archaeological dig?
Yes. There have been numerous underwater archaeological digs. But it sounds like you meant "paleontological digs". There is a massive difference between the two and many people mix them up. Paleontology is the study of past life, including animals and plants. Archaeology is the study of past human societies through the material culture they left behind.
Where is the city of Thonis Heracleion?
17 The City Of Thonis-Heracleion. via: canalblog.com. "Once situated on the northern coast of Egypt and established as one of the most important port cities of the Mediterranean, this lost underwater city has been sitting at the bottom of the sea that it once served.". (Urban Ghosts Media)
Can we ever end up visiting somewhere that has been around on the planet for this long?
We don't think that we will ever end up visiting somewhere that has been around on the planet for this long. If we do, we'll be too scared to touch anything!
Is Baiae an archaeological site?
"Now, the ruins of Baiae form an archaeological dive site, where visitors can take a boat tour above the ruins of the or scuba dive among them." (Urban Ghosts Media)
Do the pyramids exist underwater?
If you're anything like us, you thought that the Pyramids only existed in Egypt, so it's amazing to learn that there are some of them underwater. Let's all just remember that, just because somewhere is famous for something, doesn't mean it's the only place with one of them.
Is Olous underwater?
"While many lost underwater cities are either difficult to reach or protected archaeological sites, the remains of the Minoan city of Olous are accessible to all." (Urban Ghosts Media) Yes, it's hard to think of in these terms, but there are actually easy to access underwater ruins for those with even basic expertise in how to properly traverse the underwater land and the mysteries that lay within!
What are the oozes in the ocean?
The bottom could be with variety of other materials such as silica wastes from Protozooans. Shells of the Protozoons called Foraminifera, Pteropods (Molluscs), Frustules of the microalgae Diatoms, Radiolaria etc. All these are collectively named as Ooze. Thus, there is a Foraminiferan ooze, Globigerinian ooze, Pteropod ooze, Diatom or Diatomaceous ooze, Radiolarian ooze and even red clay. Maximum deposit is of Calcareous nature and called the calcareous ooze. Further, terrigenous deposits from land and those brought by the rivers also settle on the sea bed.
Where does sand come from?
I’ll pick some nits here. Sand does not stay at the bottom of the sea. In fact, sand in found most commonly around the margins of the seas and oceans and rarely in the deep ocean. Why? Because sand is from continental sources. Starts as degraded or weathered rock and then is transported by rivers to the coast where it forms deltas, or is moved along the shoreline by longshore current forming beaches. In some cases it will form deposits off shore in sub sea bars or islands, called barrier islands like you see along the Texas coast, Galveston Island is just one big sand bar, as are Mustang Island, and Padre Island. The outer banks of North Carolina are large sand deposits too.
Why does runoff from large agricultural fields enter creeks and bays?
Runoff from large agricultural fields enters creeks and bays because of rain or irrigation practices. In developing countries of Latin America, Asia, and Africa, untreated wastewater from sewage and industry mainly contribute to eutrophication. Factories and sewage facilities are less regulated than they are in developed countries, and sometimes wastewater is simply dumped into creeks, rivers, lakes, or the ocean.
Why do dead zones occur?
Dead zones occur because of a process called eutrophication, which happens when a body of water gets too many nutrients, such as phosphorus and nitrogen. At normal levels, these nutrients feed the grow
How to tell if sand is sinking?
Waves that are strong enough (big enough) to reach the sea floor can stir up sand and carry it around with the waves, but the sand is always ‘sinking’ even though it may be moving laterally at the same time. Go to the beach sometime and watch the waves - you will see the sand moving back and forth, along the bottom of the water and onto the beach.
How does sand move along the coast?
Sand deposited along the coast is moved by longshore current, distributing the sand along the beach for hundreds of miles. Surf can also move the sand shoreward or off shore in the case of storms. Man’s changing of the geological system along beaches is far more responsible for beach erosion than sea level rise.
Why does sand drop to the bottom?
Sand actually occurs all over the place - but once sand makes it into an ocean (carried there, usually, by rivers and streams) then of course it drops to the bottom, because sand is denser than water.
