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Initial Article Contributions
The Mohorovičić discontinuity, also referred to as the Moho, is the border between the Earth's crust and mantle. It is defined by the distinct change in velocity of seismological waves as they pass through changing densities of rock.

Discovery
Croatian seismologist Andrija Mohorovičić is credited with first discovering and defining the Moho. In 1909, he was examining data from a local earthquake in Zagreb when he observed two distinct sets of P-waves and S-waves propagating out from the focus of the earthquake. Mohorovičić knew that waves caused by earthquakes travel at velocities proportional to the density of the material carrying them. As a result of this information, he theorized that the second set of waves could only be caused by a sharp transition in density in theEarth's crust, which could account for such a dramatic change in wave velocity. Using velocity data from the earthquake, he was able to calculate the depth of the Moho to be approximately 54 km, which was later supported by future seismological studies.

Seismological Data
The Moho marks the transition in composition between the Earth's rocky outer crust and the more plastic mantle. In the crust, P-Waves propagate at velocities between 6.7–7.2 km/s, whereas in the mantle the velocities are closer to 7.6–8.6 km/s. This increase of approximately 1 km/s corresponds to a distinct change in density of material as the waves pass through the Earth, and is commonly accepted as the lower limit of the Earth's crust.

Article Evaluation: Mohorovičić discontinuity
There is a banner at the top pointing out that others have reported original research and unverified claims. After reading the article, it is clear that several claims need verification and are very subjective and biased, such as the "mismanaged" exploration committees. Everything in the article is at least tangentially related to the subject, but ideally there would be more scientific data in the "Nature" section regarding the discontinuity, such as composition, thickness, or interactions with other layers of the earth. Currently there is a heavy emphasis on earthquakes, but there could be more information available. Some of this is found in the opening summary, but it would make more sense within the second section. The exploration sections offers valuable points that do contribute to a holistic understanding, but the grammar makes understanding this section difficult. It could also be split into two sections to improve clarity.

As for the clerical aspects of the article, the tone comes across as awkward in some places, almost as if it was written by someone who is not a native English speaker. Some sources are not appropriate, as they link to broken files or popular magazine articles that do not use a scientific approach in conveying information.

The Talk page is not substantial. There are a few potentially useful sections listed that have been removed, but they are incoherent and do not serve any real purpose at the moment. Several of the previous editors left negative comments criticizing others and their edits.

Websites for Sources
Website: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/GD013p0257

Website: https://www.sciencedirect.com/science/article/pii/S0040195113005374

Website: https://pubs.geoscienceworld.org/cjes/article/47/4/315/54185/how-the-crust-meets-the-mantle-lithoprobe

Website: https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/TR039i005p00947

Website: https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/JZ068i015p04611

Website: https://www.sciencedirect.com/science/article/pii/B0080437516030164?via%3Dihub

Suggested Bibliography
Braile, L. W.; Chiangl, C. S. (1986), "The continental Mohorovičič Discontinuity: Results from near-vertical and wide-angle seismic reflection studies", Reflection Seismology: A Global Perspective, American Geophysical Union, pp. 257–272, doi:10.1029/gd013p0257, ISBN 0875905137, retrieved 2019-09-18.

Carbonell, Ramon; Levander, Alan; Kind, Rainer (2013-12-08). "The Mohorovičić discontinuity beneath the continental crust: An overview of seismic constraints". Tectonophysics. 609: 353–376. doi:10.1016/j.tecto.2013.08.037. ISSN 0040-1951.

Cook, Frederick A.; White, Donald J.; Jones, Alan G.; Eaton, David W.S.; Hall, Jeremy; Clowes, Ronald M. (2010-04-01). "How the crust meets the mantle: Lithoprobe perspectives on the Mohorovičić discontinuity and crust–mantle transition". Canadian Journal of Earth Sciences. 47 (4): 315–351. doi:10.1139/E09-076. ISSN 0008-4077.

Lovering, J. F. (1958). "The nature of the Mohorovicic discontinuity". Eos, Transactions American Geophysical Union. 39 (5): 947–955. doi:10.1029/TR039i005p00947. ISSN 2324-9250.

Wyllie, Peter J. (1963). "The nature of the Mohorovicic discontinuity, A compromise". Journal of Geophysical Research (1896-1977). 68 (15): 4611–4619. doi:10.1029/JZ068i015p04611. ISSN 2156-2202.

Additional Sources found while editing:

Prodehl, Claus; Mooney, Walter D. (2012). "Exploring the Earth's Crust—History and Results of Controlled-Source Seismology". doi:10.1130/mem208.

Rudnick, R. L.; Gao, S. (2003-01-01), Holland, Heinrich D.; Turekian, Karl K. (eds.), "3.01 - Composition of the Continental Crust", Treatise on Geochemistry, Pergamon, pp. 1–64, doi:10.1016/b0-08-043751-6/03016-4, ISBN 9780080437514.