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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.
Bought this a while go and shot it one time before deciding i didn’t love it. Need to make room in the safe and some extra funds. Will include a walther rmr plate and chwps holosun 509t plate. 2 15 roubd mags available to oregon residents. Asking $400 for the gun or will sell with the 509t for...
I have 3 medium and 1 x large esapi plates for sale. DOM is 2020. I recieved these in a trade a little while ago and had to test out the x large.... for science. ITAR applies. So no I won't ship these to Ukraine for you.
225 each
PM me with any questions.
Brand new in box with all the goodies. 2- 10 round mags, one with pinky extension. Blacked out suppressor height sights.
Meet in Oregon city for transfer. Buyer pays fees.
I got two unused #19’s for .40/38 super
These will accept 10mm brass.
The cut outs aren’t wide enough for large primers.
These are small primer cut
$50 per
Will trade for a 38/357 X-10 plate
Brandon
9514426918
"Tactical, Strike Face, 10" wide x 12" tall, heavy, around 5 pounds each Level 3 plates. As I am sure you know these are expensive.
Asking $50 each or $100 for both, obo. Possible trade
Thank You and God Bless
Lightly use Holosun EPS-GR6
S/N G6000129
https://holosun.com/products/reflex-sight/eps/eps-green-6.html
Will come with box, paperwork, factory screws, and the mounting plate for a RMR footprint.
I’ll also include a CH Precision GLX-EPS plate and screws that will allow you to mount it to a...
The big f*ck off red X through the center screams "Do not plan on getting shot while wearing these". If you dare complain about a slight dull thud during a torque and test after purchase I will call you *numerous* slurs.
$99 each
Two Larges, one Medium
Please dude, these should not be...
Like new
Only one of the okay industry’s mags saw use. The others just used around the house practicing reloads from the plate carrier…..
3 okay
6 duramag
Magpul base plates installed. Can also include the factory baseplates if you want them
Asking $100.00 for the lot.
Will trade for 9mm...
From Bulletproof-it, made by Hesco. Pair of 8x10 shooters cut 4601 plates. Bought them for my brother but he already outgrew them. Never used.
$400 obo in person, add $25 bucks for shipping.
These mags are like new and set up the way they should be out of the package. Ranger plates and dust covers included. $68 shipped via USPS priority insured with tracking. Electronic payments or snail mail works fine too. These are cross posted so the first I'll take it gets the goods...
Selling a set (2 plates) of Hesco L210 ceramic plates. These are “Special Threat” and not officially NIJ rated. Size large, 10”x12”. Unused. Rated to stop six rounds of 5.56x45 (M193 and M855) and 7.62x39. Local pick up only in Beaverton, Hillsboro area. No desire to ship.
Unused Protech by Safariland light weight 10x12 Type III special Threat rifle plates. Plates are Multicurve and ultra light weight with built in spall and back padding for deformation. Each plate cost me $595 I have a set of 2 for sale. Asking $500 or best offer for the set. Both are in new and...
(2) Spartan Armor AR550 III+ armor plates 10x12"
(1) Shellback Shield 1.0 plate carrier (older model before they switched to laser cut molle)
(1) Spartan Armor aramid spall containment sleeve
Everything is in good condition. The cummerbund on the plate carrier can accept soft armor inserts...
Like new Velocity Scarab LT size Medium in Coyote Brown with a Haley D3CRM Micro Chest Rig and Level 4 DEA rated Chase tactical 4s17m medium Sapi plates.
Looking to sell for $750 shipped.
Willing to sell separate. Dm for details.
Set of perfect condition Enhanced Small arms Protective Inserts size small ESAPI Plates rated to protect against multi hit 30-06 armor piercing rounds and lesser threats. These are currently used by all US military ground forces when deployed. Plates are in perfect unused condition with no...
I have 21 6"x1/2" round with tab style plates, suitable for a plate rack or hanging targets. Found them while cleaning out my dad's basement. Pretty sure they're AR500 as my dad didn't do cheap. The finished plates in the pics are NOT INCLUDED. Need this stuff gone so I think it's priced well to...
Cleaning out dad's basement and found 6 finished 6"x3/8" plates and 21 6"x1/2" unfinished plates. They could probably be used to make some nice plate racks. My dad never did stuff cheap so I'm guessing it's all AR500 but he's gone so I can't be sure. A couple of the finished plates have been...