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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.
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...
I need two sets of C&H precision plates for the G43x/48 Holosun 407/507k. I have both a Glock 43x mos and a Glock 48 mos. I know it’s a stretch but I would rather give a member my money before I resort to buying it online. Thanks guys
Sold
Bought them to have something, then got a lighter set.
Been stored in a bedroom closet since I bought them.
Only want cash. Face to face nearish Tualatin preferred.
Tacticon Plate Carrier in black w/plates,cumberbund and triple rifle/pistol mag pouch. Safelife Defense 10x12 LV4 ICW ceramic/poly plates(these are not rated Lv4 as a stand-alone plate) I have paperwork from a company here in Oregon on their testing they did for these plates. $350
Multicam...
Three lightly used Sig MPX Taran tactical +11 base plates with springs. Three different colors. Not beat up and never dropped.
Black
Red
Blue
New are like 36 each plus tax and shipping
Asking $95 for all three. Shipping paid by buyer
Trades would be sig mags or open to others just shoot me...
Bought these from another member here a while back as a spare set. Now up for sale!
Premium Hesco L210 bullet proof plates (2)
Excellent condition, recent manufacture
Never dropped or dinged
Lightweight and thin!
Also have a plate carrier available upon request
Asking 280$ for both plates
Hi there,
I have a T.Rex Arms AC1 plate carrier in ranger green for sale, along with a pair of Hesco L210 Special Threat plates (size large). This whole setup is in excellent like-new condition and has never been worn. I bought them for my partner who has decided she isn't interested in body...
3, nearly new, 25 round Magpul pmags with ranger plates installed and cover caps. These are for .308/762x51, worked in both my Remington 700cp and PSA10.
$25 per or $60 for all 3, may also have the original baseplates, but no promises till I rummage around.
Local meet in Eugene, cash...
I have a post for the complete; but if someone is just looking for a like new slide I'd also part with that & optic plates it came with unopened. Includes a Silencer Co. Threaded Barrel .5 x 28 or PN# AC1403. Figure $460 shipped with tracking? Welcome to message me here or text me at...
I bought this cause I love M81, but realized I don't need it, and I could use the cash for more fence and T posts....
This is brand new, bought from LBT direct, size large, holds 10x12 plates. Comes with the kangaroo pouch for (3) M4 mags, and I may have some other M81 pouches I will throw in...
New curved level 3 coated 10x12 AR500 plate carrier new plates new carriers 1 extra carrier included.
Trade for 9mm ammo
Sig 365 xl magazines
Or $200 cash firm it's a great deal.
Plate carrier with 2 AR500 curved level 3 with coating plates 1 3 pouch 1 2 pouch mag slots $300 firm buyer picks up cash only. Price is firm. Will trade for a glock 43 plates are 10x12 Maga knife patch not included everything else is
Just call if you don’t see a pic. I’ll tell you details. Please call before 9pm.
And anything that need an ffl absolutely needs to go through ffl. I’m sorry no exceptions.
Ben 406-407-0914
Set of unused Enhanced Small Arms Protective Inserts(ESAPI) plates Rev. H manufactured by Ceradyne Inc and have a protection rating for multiple(up to 6) 7.62 APM2(30-06 BLACK TIP TUNGSTEN CORE ARMOR PIERCING ROUNDS) and lesser threats. These plates are current issue and the newest revision...