I admit I'm no geology student (I studied economics), but I'm seriously confused now. We have these 4 papers alone in the last 2 years that confirm remnants of a high impact event 12,800 years ago and you're saying it's all bogus without providing any peer reviewed sources. I find it extremely odd that geologists could be finding the same remnants at the exact same time period across 4 continents and geologists claim it's "never been found by anyone else" (except for multiple independent teams).
Help me learn. Please look at these sources and let me know what is wrong about them:
https://scholar.google.com/scholar?q=Anronikov,%20A.%20V.,%20I.%20E.%20Andronikova,%20C.%20W.%20Loehn,%20B.%20Lafuente,%20J.%20A.%20M.%20Ballenger,%20G.%20T.%20Crawford,%20D.%20S.%20Lauretta,%20Implications%20from%20chemical,%20structural%20and%20mineralogical%20studies%20of%20magnetic%20microspherules%20from%20around%20the%20lower%20Younger%20Dryas%20boundary%20(New%20Mexico,%20USA).%20Geogra%EF%AC%81ska%20Annaler:%20Series%20A,%20Physical%20Geography%2098:1%E2%80%9321%20(2016).
https://scholar.google.com/scholar?q=Mahaney,%20W.C.;%20Somelar,%20Peeter;%20Dirszowsky,%20Randy%20W.;%20Kelleher,%20Brian;%20Pentlavalli,%20Prasanna;%20McLaughlin,%20Shane;%20Kulakova,%20Anna%20N.;%20Jordan,%20Sean;%20Pulleyblank,%20Coren;%20West,%20Allen;%20Allen,%20Christopher%20C.R.,%20(2016)%20A%20microbial%20link%20to%20weathering%20of%20postglacial%20rocks%20and%20sediments,%20Mt.%20Viso%20area,%20Western%20Alps,%20demonstrated%20through%20analysis%20of%20a%20soil/paleosol%20bio/chronosequence.%20J%20of%20Geology%20(in%20press).
https://scholar.google.com/scholar?q=Holliday%20V.,%20Surovell%20T.,%20Johnson%20E.%20(2016)%20A%20Blind%20Test%20of%20the%20Younger%20Dryas%20Impact%20Hypothesis.%20PLoS%20ONE%2011(7):%20e0155470.%20doi:10.1371/journal.pone.0155470
https://scholar.google.com/scholar?q=Kennett,%20James%20P.;%20Kennett,%20Douglas%20J.;%20Culleton,%20Brendan%20J.;%20Emili%20Aura%20Tortosa,%20J.;%20Bischoff,%20James%20L.;%20Bunch,%20Ted%20E.;%20Daniel,%20I.%20Randolph,%20Jr.;%20Erlandson,%20Jon%20M.;%20Ferraro,%20David;%20Firestone,%20Richard%20B.;%20Goodyear,%20Albert%20C.;%20Israde-Alc%C3%A1ntara,%20Isabel;%20Johnson,%20John%20R.;%20Jord%C3%A1%20Pardo,%20Jes%C3%BAs%20F.;%20Kimbel,%20David%20R.;%20LeCompte,%20Malcolm%20A.;%20Lopinot,%20Neal%20H.;%20Mahaney,%20William%20C.;%20Moore,%20Andrew%20M.T.;%20Moore,%20Christopher%20R.;%20Ray,%20Jack%20H.;%20Stafford,%20Thomas%20W.,%20Jr.;%20Barnett%20Tankersley,%20Kenneth;%20Wittke,%20James%20H.;%20Wolbach,%20Wendy%20S.;%20West,%20Allen.,%20(2015)%20Bayesian%20chronological%20analyses%20consistent%20with%20synchronous%20age%20of%2012,835%E2%80%9312,735%20Cal%20B.P.%20for%20Younger%20Dryas%20boundary%20on%20four%20continents.%20Proc%20Natl%20Acad%20Sci%20U%20S%20A%202015%20Aug%2027;112:32%20E4344-53.