Oceans get most their water from subterranean rock sources, not rivers - say what!

My life long fascination with evolution evolved from understanding the pageant of life on Earth,
to wondering about the development of minerals and ore deposits and such.
Surprisingly it wasn’t until just a couple years ago that I had that visceral breakthrough of appreciating that under oceans
the ground is saturated with water, who knows how deep, it migrates, is very hot and helps minerals evolve and get concentrated.
So today as I was searching for worthy topics to get this Science and Technology board back to some real and interesting science,
I stumbled onto another ‘Wow’ moment.

Rivers might constitute just 20 percent of continental water flowing into oceans Date: February 2, 2015 Source: University of South Carolina http://www.sciencedaily.com/releases/2015/02/150202160741.htm … At the time, it was generally thought that groundwater flow into the ocean was insignificant, maybe 3 percent to 5 percent of river flow, Moore says. The breakthrough came when one of his colleagues suggested that a sizable salty groundwater flow must be responsible for their observations. They measured radium in inland wells, finding that fresh groundwater had almost none, but that saltier groundwater was loaded with it. The inescapable conclusion: water from the ocean was being exchanged with groundwater in prodigious quantities, and it was happening underground. "The action was in the permeable sediments below. It started this whole idea that the continents were connected to the ocean not only by riverine processes, but by submarine processes." Moore says. "I came up with the term subterranean estuary. So just like the surface estuary, it's the region between the coast and the ocean where freshwater is coming in on one side and seawater is coming in on the other side, they're mixing, and after chemical reactions, some of that water is expelled back into the ocean." Moore was part of an international team that developed a quantitative model for submarine groundwater discharge across most of the globe, and they just published a paper in Geophysical Research Letters showing that the amount of subterranean water flow into the Atlantic and Indo-Pacific Oceans is some three to four times that of all rivers combined. Perhaps even more important is the conclusion that most of the flow of terrestrial nutrients is subterranean. ... {exactly 250 words © safe :) }

Meanwhile, back at the surface.

Alarming increase in flow of water into oceans due to global warming, accelerated cycle of evaporation, precipitation Date: October 5, 2010 Source: University of California -- Irvine http://www.sciencedaily.com/releases/2010/10/101004151700.htm Summary: Freshwater is flowing into Earth's oceans in greater amounts every year, a team of researchers has found, thanks to more frequent and extreme storms linked to global warming. All told, 18 percent more water fed into the world's oceans from rivers and melting polar ice sheets in 2006 than in 1994, with an average annual rise of 1.5 percent. ...
New study finds sea level rose 2.4 mm/year between 2005 and 2011 Jun 03, 2013 by Bob Yirka http://phys.org/news/2013-06-sea-rose-mmyear.html (Phys.org) —A new study conducted by researchers at the University of Texas' Center for Space Research, indicates that sea level rise between 2005 and 2011 was due primarily to glacial and polar ice shelf melting. In their paper published in Nature Geoscience, the team describes how they studied data from satellites and ocean surface sensors to measure changes in ocean mass and density which allowed them to calculate an average global sea level rise of nearly 2.4mm/year. The researchers note that sea level changes come about in three main ways: changes in the mass of the water in the ocean, its density, and changes in the volume of ocean basins.
Here's another mind expanding realization, glacier's mass has gravitational influence meaning melting glaciers, actually decrease the sea level in the vicinity of the glacier. Incredible, fascinating, but makes sense once it's explained:
In Search of Lost Time: Ancient Eclipses, Roman Fish Tanks and the Enigma of Global Sea Level Rise Distinctive Voices https://www.youtube.com/watch?v=GdfTUdU9x-k ~ ~ ~ Jerry Mitrovica, Harvard University Arthur M. Sackler Colloquia https://www.youtube.com/watch?v=RhdY-ZezK7w

But wait there’s more.

Greenland rapidly rising as ice melt continues May 18, 2010 http://phys.org/news193410777.html According to the study, some coastal areas are going up by nearly one inch per year and if current trends continue, that number could accelerate to as much as two inches per year by 2025, explains Tim Dixon, professor of geophysics at the University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) and principal investigator of the study. "It's been known for several years that climate change is contributing to the melting of Greenland's ice sheet," Dixon says. "What's surprising, and a bit worrisome, is that the ice is melting so fast that we can actually see the land uplift in response," he says. "Even more surprising, the rise seems to be accelerating, implying that melting is accelerating."
Iceland rises as its glaciers melt from climate change Date: January 29, 2015 Source: University of Arizona http://www.sciencedaily.com/releases/2015/01/150129113719.htm Summary: Earth's crust under Iceland is rebounding as global warming melts the island's great ice caps. In south-central Iceland some sites are moving upward as much as 1.4 inches (35 mm) per year. A new paper is the first to show the current fast uplift of the Icelandic crust is a result of accelerated melting of the island's glaciers and coincides with the onset of warming that began about 30 years ago, the researchers said.
OK, enough fun, time to get back to the Steele Salt Mine :ahhh:
But wait there's more.
Greenland rapidly rising as ice melt continues May 18, 2010 http://phys.org/news193410777.html According to the study, some coastal areas are going up by nearly one inch per year and if current trends continue, that number could accelerate to as much as two inches per year by 2025, explains Tim Dixon, professor of geophysics at the University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) and principal investigator of the study. "It's been known for several years that climate change is contributing to the melting of Greenland's ice sheet," Dixon says. "What's surprising, and a bit worrisome, is that the ice is melting so fast that we can actually see the land uplift in response," he says. "Even more surprising, the rise seems to be accelerating, implying that melting is accelerating."
Iceland rises as its glaciers melt from climate change Date: January 29, 2015 Source: University of Arizona http://www.sciencedaily.com/releases/2015/01/150129113719.htm Summary: Earth's crust under Iceland is rebounding as global warming melts the island's great ice caps. In south-central Iceland some sites are moving upward as much as 1.4 inches (35 mm) per year. A new paper is the first to show the current fast uplift of the Icelandic crust is a result of accelerated melting of the island's glaciers and coincides with the onset of warming that began about 30 years ago, the researchers said.
OK, enough fun, time to get back to the Steele Salt Mine :ahhh:
This is great news if you live near the shore in Greenland, but not so great for those countries near Greenland: UK, Scandinavia, Canada etc. They will sink as a 'see-saw' response!