kerogens - 2024 ACF Regionals

Question

The thermal maturity of this material can be quantified with the vitrinite reflectance and is plotted on van Krevelen diagrams. For 10 points each:

[10h] Name this insoluble organic component of sedimentary rock mostly composed of dead plants and marine microorganisms. Macerals of this material undergo partial decomposition to form fossil fuels.

ANSWER: kerogens [reject “bitumens”]

[10e] Kerogens are rich in the “oil” form of this sedimentary rock. Natural gas is extracted from the Barnett and Marcellus formations of this rock via fracking.

ANSWER: shale [accept oil shale or shale gas]

[10m] Biopolymer-rich sediments condense and vulcanize to form kerogens and bitumens as part of this broad set of transformations that occur during the formation of sedimentary rocks. For kerogens, this process is followed by catagenesis and metagenesis.

ANSWER: diagenesis

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Summary


2024 ACF Regionals @ Berkeley	01/27/2024	Y	3	16.67	100%	67%	0%
2024 ACF Regionals @ Cornell	01/27/2024	Y	3	10.00	100%	0%	0%
2024 ACF Regionals @ JMU	01/27/2024	Y	11	10.91	91%	9%	9%
2024 ACF Regionals @ Minnesota	01/27/2024	Y	2	10.00	100%	0%	0%
2024 ACF Regionals @ Nebraska	01/27/2024	Y	6	10.00	100%	0%	0%
2024 ACF Regionals @ Ohio State	01/27/2024	Y	3	6.67	67%	0%	0%
2024 ACF Regionals @ Rutgers	01/27/2024	Y	5	10.00	100%	0%	0%
2024 ACF Regionals @ Imperial	01/27/2024	Y	4	10.00	100%	0%	0%
2024 ACF Regionals @ Vanderbilt	01/27/2024	Y	5	8.00	80%	0%	0%

Data


Berkeley A	Berkeley B	0	10	0	10
Berkeley C	Stanford A	0	10	10	20
Stanford B	Stanford C	0	10	10	20
Cornell B	Binghamton	0	10	0	10
RIT A	Cornell A	0	10	0	10
Cornell C	RIT B	0	10	0	10
Duke A (UG)	Liberty A (Grad)	0	10	0	10
GWU A (UG)	JMU B (UG)	0	10	0	10
Maryland B (UG)	GWU B (Grad)	0	10	0	10
Liberty B (DII)	JMU A (UG)	0	10	0	10
Liberty C (DII)	UNC D (DII)	0	10	0	10
Roanoke College A (DII)	William & Mary A (UG)	0	10	0	10
Maryland A (Grad)	UNC B (UG)	10	10	10	30
UNC C (UG)	Virginia A (UG)	0	10	0	10
Virginia B (UG)	Maryland C (DII)	0	0	0	0
UNC A (Grad)	Virginia C (UG)	0	10	0	10
UNC A (Grad)	Virginia C (UG)	0	10	0	10
UNC A (Grad)	Virginia C (UG)	0	10	0	10
UNC A (Grad)	Virginia C (UG)	0	10	0	10
UNC A (Grad)	Virginia C (UG)	0	10	0	10
UNC A (Grad)	Virginia C (UG)	0	10	0	10
UNC A (Grad)	Virginia C (UG)	0	10	0	10
UNC A (Grad)	Virginia C (UG)	0	10	0	10
Iowa State	Minnesota C	0	10	0	10
Arizona State	Minnesota B	0	10	0	10
Iowa A	Claremont A	0	10	0	10
Michigan State A	UBC A	0	10	0	10
Texas A	Rice A	0	10	0	10
Sorbonne	Iowa B	0	10	0	10
UW A	Texas A&M A	0	10	0	10
Appalachian State	Texas A&M B	0	10	0	10
Michigan B	Michigan A	0	0	0	0
Ohio State A	Michigan C	0	10	0	10
Ohio State B	Kenyon	0	10	0	10
Columbia B	Haverford	0	10	0	10
John Jay	Johns Hopkins	0	10	0	10
NYU A	NYU B	0	10	0	10
Columbia A	Penn	0	10	0	10
Rowan	Columbia C	0	10	0	10
Bristol	Sheffield	0	10	0	10
Cambridge A	Warwick	0	10	0	10
Durham A	Imperial A	0	10	0	10
Oxford C	Durham B	0	10	0	10
Geodesic	Vanderbilt B	0	10	0	10
Alabama	Georgia Tech A	0	10	0	10
MTSU	Harding	0	0	0	0
Kentucky	Georgia Tech B	0	10	0	10
Vanderbilt A	Tennessee	0	10	0	10