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plates
Plate tectonics (from the Late Latin tectonicus, from the Greek: τεκτονικός "pertaining to building") is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of the Earth's lithosphere, since tectonic processes began on Earth between 3.3 and 3.5 billion years ago. The model builds on the concept of continental drift, an idea developed during the first decades of the 20th century. The geoscientific community accepted plate-tectonic theory after seafloor spreading was validated in the late 1950s and early 1960s.
The lithosphere, which is the rigid outermost shell of a planet (the crust and upper mantle), is broken into tectonic plates. The Earth's lithosphere is composed of seven or eight major plates (depending on how they are defined) and many minor plates. Where the plates meet, their relative motion determines the type of boundary: convergent, divergent, or transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries (or faults). The relative movement of the plates typically ranges from zero to 100 mm annually.Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. Along convergent boundaries, subduction, or one plate moving under another, carries the lower one down into the mantle; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the lithosphere remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories, since disproven, proposed gradual shrinking (contraction) or gradual expansion of the globe.Tectonic plates are able to move because the Earth's lithosphere has greater mechanical strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection; that is, the slow creeping motion of Earth's solid mantle. Plate movement is thought to be driven by a combination of the motion of the seafloor away from spreading ridges due to variations in topography (the ridge is a topographic high) and density changes in the crust (density increases as newly formed crust cools and moves away from the ridge). At subduction zones the relatively cold, dense crust is "pulled" or sinks down into the mantle over the downward convecting limb of a mantle cell. Another explanation lies in the different forces generated by tidal forces of the Sun and Moon. The relative importance of each of these factors and their relationship to each other is unclear, and still the subject of much debate.
I have an OD surplus plate carrier from I believe Eastern Europe somewhere but it has rifle and pistol mag pouches, as well as a secondary pouch for your hip and one that goes on the back. Comes with two level 3 steel plates.
Asking $100 for everything but would be willing to trade for Trapdoor...
Brand new in packaging Tandemkross +5 magazine extension, 2 pack that retails for $24.99 new
Increases capacity from 10+1 to 15+1, excellent for larger hands giving pinky a place to rest
Pick up in East Portland
Brand new/unfired Glock 19 gen 5 slide complete (with barrel, internals) - sold
6 new 10 round Glock 19 mags - price drop - sold
still for sale: Glock MOS Plate adapter set NIB, asking $25/obo
Cleaning out extra items I have on my loading table. Photos available on request.
45 acp conversion-$45-gone
#5 shellplate -$20-gone
Rcbs powder trickler-free
Lee beam scale-free-Gone
Lee 38/357 dies-$25-Gone
LA Police gear level III rifle plates. Shellback carrier in FDE. Plates test fitted in the carrier but otherwise never worn.
Looking to get $200.00 for the plates and carrier. Selling items together.
Meet in Canby I can’t travel far from home for medical reasons. PM me if interested.
For Sale:
SKD PIG plate carrier
PIG plate carrier molle cummerbund
Spartan Armor AR650 Plates (1 Pair) - The Spartan Armor Systems AR650 Armaply™ Level III+/Special Threat Tested body armor is Stand-Alone and has PROVEN Multi-Hit capabilities. This armor is engineered to defeat some of the...
Interesting Find: Armored Republic (AR500) "Heritage" flat NIJ Level III plates (good against M855 but not M193) 2 for $65 ending at midnight Pacific tonight. Add trauma pads for $20 ($10 each) or upgrade to multicurve plates for $34 ($17 each). Other products, 20.12% off with code 10YEAR...
Going to be doing a cross country move and need to sell my home gym. Everything is in excellent condition. I would love to keep it , but adding 1500 pounds to my trailer for a long drive is not really doable.
$1/lb for Steel Plates (2x45)
$300 for the Reverse Hyper
$300 Bowtech 552...
Condor plate carrier in large with level 4 rma plates. Has 3 mag placard on front, another mag pouch on the left and a tourniquet holder on right side. 300 cash obo. Thanks for looking.
I have a brand new coyote in color freeman plate carrier with lvl 3 multi curve plates. Never used, just sat in the closet. $150 shipped PayPal gift or add 4% for fees.
Selling a condor Sentry plate carrier in black with a pair of 10x12 ar500 level 3+ lightweight plates with trauma pads. Plates have the build up coating on them. Never used other than tried it on. Asking $400
Looking for OEM RMR Optic Mounting Plates for the 509 Tactical. Two pieces and the screws.
- Plate #502
- Insert #506
- Screws (2) #511 .530"
Tell me you put on a Delta Point or Vortex and you have them laying around. Please, Please, Please.
Thank you,
Thomas
For sell is Spartan Body Armor AR500 Set 2 Plates. This is level III rated and has never been carried. Size is 10"x12". One plate is single curved and one is flat. This armor is coated to reduce bullet spalling upon impact. Both plates are in the shooters cut.
Plates like these MSRP at $183.74...
AR 500 Veritas 10x12 plate carrier with condor 3 mag kangaroo pouch and Thor armory single curve plates.
Adjustable cummerbund on one side for rapid deployment. Original buckle strap included.
$180
AWS Operators Choice Plate Carrier size Medium, x2 RMA 1155MC 10x12 Plates, 5.56 Triple Kywi up front, TQ plus Holder, Kbar TDI with sheath one wrapped, Esstac Daeodon Hydration carrier with 3L Source Bladder. Links below to product pages. Everything is in new or like new condition only worn for...
This Condor plate carrier is in excellent condition still with the tags on it. It comes with front and back plates. I do not have any details on the plates as they are unmarked.
Complete set of Front, back, and side AR 500 plates.
Comes with carrier and mag shingle.
Great for fitness, practice etc.
Any questions let me know.
Looking for cash at this time thanks.
Selling cheap because their taking up space
Safelife Lv4 ICW plates was my first purchase and never got a lv3 backer, would only recommend for someone with a soft Lv3 vest that accepts plates only. $175
BULLETPROOF-IT STAR647 plates, consecutive SN's. Lv3 plates. STAR 647 is not AR500/AR550...