They identified tiny glass shards mixed in with the muds almost 30m below the lake bed.
The shards represent small fragments of magma ejected from a volcano that have "frozen" in flight.
One report said the forensic teams had found tiny shards of the weapon's handle.
Doctors treating the wounded say their injuries indicate that the bombs contained metal shards and other shrapnel.
As shards and projectiles began rising toward the surface of my square, I grew tense with anticipation.
The shards of our broken economy remain scattered on the ground and we're gluing them back together.
As the last shards of sunshine danced on the sand, we got to Big Flat at 8 p.m.
Rusted wheels stand silent, gap-toothed wooden houses are half-collapsed: the rotten shards of a thousand dreams of riches.
Mark Burrey and others were brought in to reverse engineer Gaudi's models, which were now piles of shards.
As it churned through the community, the twister scattered shards of wood, awnings and glass all over the streets.
Shannon was hit by a bullet that took out his eye and left shards of metal in his brain.
Tamima had the most care, with surgery to remove tiny shards of shrapnel.
Her analysis located 44 previously unidentified tells, which she then dated from shards of pottery she picked up there.
May as well carve up the roster and sell the shards to contenders.
Can she safely dance at the ball without fear of tiny shards of glass cutting her skin and ruining her dress?
As the new season begins, the Cards--even some fans call them the Shards, as in shattered glass--have lost 664 games (57%).
Synthetic diamonds, made by compressing diamond shards under high temperature and pressure, are less brittle and wear more evenly than natural diamonds.
Ashtray-size shards of glass flew like shrapnel, cutting his arms and chest.
Shards of glass and pieces of their home crackled underneath their footsteps.
For those untroubled by shards of past pain, exuberance comes easily today.
But it didn't keep potentially lethal shards from flying into the stands.
The primary colour of the uniform is white with gold shards accenting the energy of the Olympic flame at the shoulder and neckline.
BBC: London 2012: Will the Olympic Games be a stylish affair?
You have to enter Main Street on foot because the road is littered with knee-high chunks of concrete, shards of metal and glass.
Although many of the tiles shattered -- some were reduced to dust -- scientists found enough shards that were large enough to study.
Standing at the 244m-high viewpoint, with the wind licking the jagged shards of glass that razor another 66m skywards, is both dizzying and enthralling.
Next to it he draws a side-on view, making the point that although the building tapers at the top, the separate shards never touch.
Even a well-equipped hacker can't get microscopic glass shards to fall into a prearranged pattern, says Ravikanth Pappu , a co-inventor of the technology.
Then the bubble pops, and in its falling shards is reflected the sad image of pretty much who you were before getting so gloriously rich.
No doubt Dalio has been eating a few shards this year.
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