Mysterious giant sphere Unearthed in Forest Divides Opinion

 

 That ball does look like geology hard at work.  What we sadly lack is a convincing natural process to form this object at this scale.

The best explanation that i can see is for human intervention and serious sophistication in the cementing chemistry.  We do have evidence of just that in this era. 

Thus presuming that a team is making up a clay based slurry every day ti mostly produce molded blocks for larger structure, it is no leap for them to simply roll up a layer every day starting with a small shaped ball.  That at least explains the motive energy to roll up such a ball and allows us to dismiss natural activity which will crush and grind.

We need to recover the recipe at least and also compare the chemistry with all the supposed build structures around this district.  In the process we can confirm or even reject human intervention.  Right now though it looks like an antique empire using up its labor tax.  This would place it in the Bronze Age or even earlier.

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Mysterious giant sphere unearthed in forest divides opinion

 Suad Keserovic cleans a stone ball in Podubravlje village CREDIT: REUTERS/DADO RUVIC

Adam Bo 11 APRIL 2

http://www.telegraph.co.uk/news/2016/04/11/mysterious-giant-sphere-unearthed-in-forest-divides-opinion/

This round rock could be the oldest stone sphere made by human hands, says Bosnian archaeologist Semir Osmanagic.

Discovered in a forest near the Bosnian town Zavidovici, the ball has a radius of between four and five feet, and an "extremely high" iron content.

Dr Osmanagic believes the sphere proves the existence of an advanced lost civilisation dating back more than 1,500 years ago. 

 

CREDIT: REUTERS/DADO RUVIC

According to his fellow researcher Dr. Sam Osmanagich, the region used to have many more of the spheres well into the 20th century. Many were apparently destroyed in the 1970s due to rumours there was gold hidden in the middle of them.

Dr Osmanagic, known as "the Bosnian Indiana Jones," hit headlines in 2005 when he claimed that a cluster of hills in Bosnia's Visoko Valley was in fact the site of ancient pyramids linked by a network of underground tunnels.

While his claims were mocked by some, the Bosnian government gave financial backing enabling excavations to be carried out in the region. Nedzad Brankovic, Bosnian Prime Minister at the time: "We were told the world was laughing at us ... but there is no government in the world that should stay quiet on things which are positive." 

 

CREDIT: REUTERS/DADO RUVIC /SUAD KESEROVIC CLEANS A STONE BALL I

Anthony Harding, the president of the European Association of Archaeologists, described the Visoko excavation as "a total absurdity", saying: "There is some genuine archaeology on the hill and I'm told it's medieval, possibly Bronze Age or Roman. But the speculation that there could be a 12,000-year-old structure beneath is a complete fantasy and anyone with basic knowledge of archaeology or history should recognise that."

In 2016, critics are once again lining up to poke holes in Dr Osmanagic's rather grand claims. Discussing the Zavidovici spehere, Mandy Edwards of the University of Manchester's School of Earth, Atmospheric and Environmental Sciences told MailOnline the rock may not be man-made at all, and have been formed by the "precipitation of natural mineral cement within the spaces between sediment grains" - a process known as concretion.