Semi-slav: Noteboom variation, Anti-Noteboom

I play the Noteboom or something like it whenever I'm faced with d4 c4. The anti-Noteboom (Bg5) can be quite scary. However, Alexei Shirov and Vassily Ivanchuk both appear to have played into the Anti-Noteboom successfully as black many times, and both address it by going all-in on the queenside. Here is an example:

Something to keep in mind if you like to grab that c pawn.

This is not Noteboom, wich would be 3. - e6 4. Nc3 dxc4

This is the Botvinnik Variation (Anti Meran).

Chess.com doesn't give a name for it. 365chess.com gives "D44 Queen's Gambit Declined semi-Slav, 5.Bg5 dc" as the name for the sequence through move 5.

I thought the Meran was characterized by white's e3, as ghostofmaroczy posted? But I could be wrong.

Anyway, the point is that it resembles this position 

In response to the original post, here are the differences:

Thanks for the information/clarity. I did not realize the Triangle Defense should be played via 2 ...e6 - that is helpful to know!

Do ghosts use words? I don't intuitively understand the meaning of these lines.

@Veganomnomnom There is a difference. Starting with 2...c6 allows the Slav Exchange, which is more drawish than the Q.G.D. exchange. Also, 3. cxd5 in the Q.G.D. exchange is pretty inaccurate, so you should not worry about it as black, so in my opinion it makes more sense to go into a triangle via the Q.G.D. move order.

It is also possible to play the triangle move order- but if white plays 4. Nf3, to play 4...Nf6, not the Noteboom, and either a Meran or maybe Cambridge Springs.