What is wrong with you?
1044-922 BC, SPGT Swat valley, R1a1a1b
824-792 BC, SPGT Swat valley, R1a1a1
What is your source? I see just one R1a here:
https://www.biorxiv.org/content/10.1101/292581v1.supplementary-material
[TABLE="width: 5739"]
[TR]
[TD="class: xl73, width: 112"]I6891[/TD]
[TD="class: xl73, width: 138"]I6891[/TD]
[TD="class: xl73, width: 214"]DA-SIM0317-005, Grave 11[/TD]
[TD="class: xl73, width: 156"]petrous[/TD]
[TD="class: xl73, width: 249"]S6891.E1.L1[/TD]
[TD="class: xl73, width: 156"]1240K.capture[/TD]
[TD="class: xl73, width: 156"]n/a (no date)[/TD]
[TD="class: xl73, width: 156"]This study[/TD]
[TD="class: xl73, width: 289"]Luca Olivieri, Muhammad Zahir, Massimo Vidale, Roberto Micheli, Ayushi Nayak, Nicole Boivin[/TD]
[TD="class: xl73, width: 63"]2350[/TD]
[TD="class: xl73, width: 423"]500-300 BCE[/TD]
[TD="class: xl73, width: 313"]Saidu_Sharif_IA[/TD]
[TD="class: xl73, width: 156"]Saidu_Sharif_IA[/TD]
[TD="class: xl73, width: 156"]South Asia[/TD]
[TD="class: xl73, width: 55"]H[/TD]
[TD="class: xl73, width: 666"]Saidu Sharif, Swat Valley[/TD]
[TD="class: xl73, width: 156"]Pakistan[/TD]
[TD="class: xl73, width: 156"]34.75[/TD]
[TD="class: xl73, width: 112"]72.35[/TD]
[TD="class: xl73, width: 112"]M[/TD]
[TD="class: xl73, width: 112"]R5a2[/TD]
[TD="class: xl73, width: 112"]R1a1a1b[/TD]
[TD="class: xl73, width: 141"]3.842956[/TD]
[TD="class: xl73, width: 112"]870281[/TD]
[TD="class: xl73, width: 112"]All[/TD]
[TD="class: xl73, width: 225"]PASS (Xcontam=0.006)[/TD]
[TD="class: xl73, width: 142"]0.006341[/TD]
[TD="class: xl73, width: 142"]2.94820669[/TD]
[TD="class: xl73, width: 103"]half[/TD]
[TD="class: xl73, width: 112"]0.149[/TD]
[TD="class: xl73, width: 112"]R5a2[/TD]
[TD="class: xl73, width: 112"]0.996[/TD]
[TD="class: xl72, width: 104"][/TD]
[TD="class: xl72, width: 104"][/TD]
[/TR]
[/TABLE]
Again, what is wrong with you? This is what it actually says:
“the R1a haplogroup occurs at 99% frequency in males in individuals of the Western_Steppe_MLBA and Central_Steppe_MLBA. Further to the south, the R1a haplogroup is not observed in any of our sampled ancient DNA from Iran and Turan until after ~2000 BCE. Most notably, we observe R1a in 2 individuals from Late Bronze-Iron Age South Asia whose autosomal ancestry is typical of the SPGT (Swat Protohistoric Grave Type) genetic cluster, consistent with genome-wide estimates of Steppe pastoralist-related admixture into this group between 2000-1500 BCE. R1a makes up a significant fraction of the Y haplogroups in present-day day Iran, Turan and South Asia, showing that once it arrived in this region in the MLBA and afterward, it had a long term impact.”
Narasimhan et al. 2019, Supplementary material, p.319
What do you mean? It also says "MLBA and
afterward".